Home / 119,308.47-178,573.29-87,710.16

Finding the Fourth Proportional to 119,308.47, 178,573.29 and 87,710.16

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Solution

The fourth proportional to 119,308.47, 178,573.29 and 87,710.16 is: 131,278.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,308.47 : 178,573.29 = 87,710.16 : x
  2. Step 2: Convert to fraction form
    119,308.47/178,573.29 = 87,710.16/x
  3. Step 3: Cross multiply
    119,308.47x = 178,573.29 × 87,710.16
  4. Step 4: Simplify right side
    119,308.47x = 15,662,691,837.63
  5. Step 5: Solve for x
    x = 15,662,691,837.63/119,308.47
  6. Step 6: Final answer
    x = 131,278.96

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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.