Home / 106,240.40-159,323.45-31,340.66

Finding the Fourth Proportional to 106,240.40, 159,323.45 and 31,340.66

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Solution

The fourth proportional to 106,240.40, 159,323.45 and 31,340.66 is: 47,000.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,240.40 : 159,323.45 = 31,340.66 : x
  2. Step 2: Convert to fraction form
    106,240.40/159,323.45 = 31,340.66/x
  3. Step 3: Cross multiply
    106,240.40x = 159,323.45 × 31,340.66
  4. Step 4: Simplify right side
    106,240.40x = 4,993,301,123.16
  5. Step 5: Solve for x
    x = 4,993,301,123.16/106,240.40
  6. Step 6: Final answer
    x = 47,000.02

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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.