Home / 106,566,187.40-159,849,281.10-72,128,810.60

Finding the Fourth Proportional to 106,566,187.40, 159,849,281.10 and 72,128,810.60

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Solution

The fourth proportional to 106,566,187.40, 159,849,281.10 and 72,128,810.60 is: 108,193,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,566,187.40 : 159,849,281.10 = 72,128,810.60 : x
  2. Step 2: Convert to fraction form
    106,566,187.40/159,849,281.10 = 72,128,810.60/x
  3. Step 3: Cross multiply
    106,566,187.40x = 159,849,281.10 × 72,128,810.60
  4. Step 4: Simplify right side
    106,566,187.40x = 11,529,738,521,008,058
  5. Step 5: Solve for x
    x = 11,529,738,521,008,058/106,566,187.40
  6. Step 6: Final answer
    x = 108,193,215.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.