Home / 129,344.54-178,342.80-88,528.35

Finding the Fourth Proportional to 129,344.54, 178,342.80 and 88,528.35

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Solution

The fourth proportional to 129,344.54, 178,342.80 and 88,528.35 is: 122,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,344.54 : 178,342.80 = 88,528.35 : x
  2. Step 2: Convert to fraction form
    129,344.54/178,342.80 = 88,528.35/x
  3. Step 3: Cross multiply
    129,344.54x = 178,342.80 × 88,528.35
  4. Step 4: Simplify right side
    129,344.54x = 15,788,393,818.38
  5. Step 5: Solve for x
    x = 15,788,393,818.38/129,344.54
  6. Step 6: Final answer
    x = 122,064.64

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1.5x scale

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.