Home / 114,423.61-157,909.98-71,428.56

Finding the Fourth Proportional to 114,423.61, 157,909.98 and 71,428.56

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Solution

The fourth proportional to 114,423.61, 157,909.98 and 71,428.56 is: 98,574.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,423.61 : 157,909.98 = 71,428.56 : x
  2. Step 2: Convert to fraction form
    114,423.61/157,909.98 = 71,428.56/x
  3. Step 3: Cross multiply
    114,423.61x = 157,909.98 × 71,428.56
  4. Step 4: Simplify right side
    114,423.61x = 11,279,282,399.95
  5. Step 5: Solve for x
    x = 11,279,282,399.95/114,423.61
  6. Step 6: Final answer
    x = 98,574.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.