Home / 103,614.10-142,981.94-61,157.14

Finding the Fourth Proportional to 103,614.10, 142,981.94 and 61,157.14

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Solution

The fourth proportional to 103,614.10, 142,981.94 and 61,157.14 is: 84,393.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.10 : 142,981.94 = 61,157.14 : x
  2. Step 2: Convert to fraction form
    103,614.10/142,981.94 = 61,157.14/x
  3. Step 3: Cross multiply
    103,614.10x = 142,981.94 × 61,157.14
  4. Step 4: Simplify right side
    103,614.10x = 8,744,366,522.05
  5. Step 5: Solve for x
    x = 8,744,366,522.05/103,614.10
  6. Step 6: Final answer
    x = 84,393.60

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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.