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Finding the Fourth Proportional to 129,951, 179,332.92 and 70,335

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Solution

The fourth proportional to 129,951, 179,332.92 and 70,335 is: 97,062.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,951 : 179,332.92 = 70,335 : x
  2. Step 2: Convert to fraction form
    129,951/179,332.92 = 70,335/x
  3. Step 3: Cross multiply
    129,951x = 179,332.92 × 70,335
  4. Step 4: Simplify right side
    129,951x = 12,613,380,928.20
  5. Step 5: Solve for x
    x = 12,613,380,928.20/129,951
  6. Step 6: Final answer
    x = 97,062.59

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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.