Home / 130,154.70-195,009.25-71,031.90

Finding the Fourth Proportional to 130,154.70, 195,009.25 and 71,031.90

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Solution

The fourth proportional to 130,154.70, 195,009.25 and 71,031.90 is: 106,426.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,154.70 : 195,009.25 = 71,031.90 : x
  2. Step 2: Convert to fraction form
    130,154.70/195,009.25 = 71,031.90/x
  3. Step 3: Cross multiply
    130,154.70x = 195,009.25 × 71,031.90
  4. Step 4: Simplify right side
    130,154.70x = 13,851,877,545.08
  5. Step 5: Solve for x
    x = 13,851,877,545.08/130,154.70
  6. Step 6: Final answer
    x = 106,426.26

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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.