Home / 119,126.61-178,633.29-69,221.10

Finding the Fourth Proportional to 119,126.61, 178,633.29 and 69,221.10

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Solution

The fourth proportional to 119,126.61, 178,633.29 and 69,221.10 is: 103,798.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,126.61 : 178,633.29 = 69,221.10 : x
  2. Step 2: Convert to fraction form
    119,126.61/178,633.29 = 69,221.10/x
  3. Step 3: Cross multiply
    119,126.61x = 178,633.29 × 69,221.10
  4. Step 4: Simplify right side
    119,126.61x = 12,365,192,830.42
  5. Step 5: Solve for x
    x = 12,365,192,830.42/119,126.61
  6. Step 6: Final answer
    x = 103,798.75

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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.