Home / 118,764.40-178,152.12-66,134.38

Finding the Fourth Proportional to 118,764.40, 178,152.12 and 66,134.38

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Solution

The fourth proportional to 118,764.40, 178,152.12 and 66,134.38 is: 99,204.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,764.40 : 178,152.12 = 66,134.38 : x
  2. Step 2: Convert to fraction form
    118,764.40/178,152.12 = 66,134.38/x
  3. Step 3: Cross multiply
    118,764.40x = 178,152.12 × 66,134.38
  4. Step 4: Simplify right side
    118,764.40x = 11,781,980,001.89
  5. Step 5: Solve for x
    x = 11,781,980,001.89/118,764.40
  6. Step 6: Final answer
    x = 99,204.64

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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.