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Finding the Fourth Proportional to 114,284.60, 157,711.02 and 63,985.40

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Solution

The fourth proportional to 114,284.60, 157,711.02 and 63,985.40 is: 88,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,284.60 : 157,711.02 = 63,985.40 : x
  2. Step 2: Convert to fraction form
    114,284.60/157,711.02 = 63,985.40/x
  3. Step 3: Cross multiply
    114,284.60x = 157,711.02 × 63,985.40
  4. Step 4: Simplify right side
    114,284.60x = 10,091,202,699.11
  5. Step 5: Solve for x
    x = 10,091,202,699.11/114,284.60
  6. Step 6: Final answer
    x = 88,298.88

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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.