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Finding the Fourth Proportional to 129,925.92, 179,298.36 and 70,309.92

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Solution

The fourth proportional to 129,925.92, 179,298.36 and 70,309.92 is: 97,028.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,925.92 : 179,298.36 = 70,309.92 : x
  2. Step 2: Convert to fraction form
    129,925.92/179,298.36 = 70,309.92/x
  3. Step 3: Cross multiply
    129,925.92x = 179,298.36 × 70,309.92
  4. Step 4: Simplify right side
    129,925.92x = 12,606,453,347.73
  5. Step 5: Solve for x
    x = 12,606,453,347.73/129,925.92
  6. Step 6: Final answer
    x = 97,028.01

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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.