Home / 127,129.08-175,439.34-70,545.72

Finding the Fourth Proportional to 127,129.08, 175,439.34 and 70,545.72

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Solution

The fourth proportional to 127,129.08, 175,439.34 and 70,545.72 is: 97,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,129.08 : 175,439.34 = 70,545.72 : x
  2. Step 2: Convert to fraction form
    127,129.08/175,439.34 = 70,545.72/x
  3. Step 3: Cross multiply
    127,129.08x = 175,439.34 × 70,545.72
  4. Step 4: Simplify right side
    127,129.08x = 12,376,494,556.62
  5. Step 5: Solve for x
    x = 12,376,494,556.62/127,129.08
  6. Step 6: Final answer
    x = 97,353.76

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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.