Home / 147,669.40-221,352.90-72,674.20

Finding the Fourth Proportional to 147,669.40, 221,352.90 and 72,674.20

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Solution

The fourth proportional to 147,669.40, 221,352.90 and 72,674.20 is: 108,936.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,669.40 : 221,352.90 = 72,674.20 : x
  2. Step 2: Convert to fraction form
    147,669.40/221,352.90 = 72,674.20/x
  3. Step 3: Cross multiply
    147,669.40x = 221,352.90 × 72,674.20
  4. Step 4: Simplify right side
    147,669.40x = 16,086,644,925.18
  5. Step 5: Solve for x
    x = 16,086,644,925.18/147,669.40
  6. Step 6: Final answer
    x = 108,936.89

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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.