Home / 142,329.55-213,487.04-42,490.57

Finding the Fourth Proportional to 142,329.55, 213,487.04 and 42,490.57

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Solution

The fourth proportional to 142,329.55, 213,487.04 and 42,490.57 is: 63,733.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,329.55 : 213,487.04 = 42,490.57 : x
  2. Step 2: Convert to fraction form
    142,329.55/213,487.04 = 42,490.57/x
  3. Step 3: Cross multiply
    142,329.55x = 213,487.04 × 42,490.57
  4. Step 4: Simplify right side
    142,329.55x = 9,071,186,017.21
  5. Step 5: Solve for x
    x = 9,071,186,017.21/142,329.55
  6. Step 6: Final answer
    x = 63,733.68

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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.