Home / 437,426.15-656,139.16-105,002.15

Finding the Fourth Proportional to 437,426.15, 656,139.16 and 105,002.15

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Solution

The fourth proportional to 437,426.15, 656,139.16 and 105,002.15 is: 157,503.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,426.15 : 656,139.16 = 105,002.15 : x
  2. Step 2: Convert to fraction form
    437,426.15/656,139.16 = 105,002.15/x
  3. Step 3: Cross multiply
    437,426.15x = 656,139.16 × 105,002.15
  4. Step 4: Simplify right side
    437,426.15x = 68,896,021,974.18
  5. Step 5: Solve for x
    x = 68,896,021,974.18/437,426.15
  6. Step 6: Final answer
    x = 157,503.21

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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.