Home / 130,411.08-195,728.40-129,429.36

Finding the Fourth Proportional to 130,411.08, 195,728.40 and 129,429.36

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Solution

The fourth proportional to 130,411.08, 195,728.40 and 129,429.36 is: 194,254.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,411.08 : 195,728.40 = 129,429.36 : x
  2. Step 2: Convert to fraction form
    130,411.08/195,728.40 = 129,429.36/x
  3. Step 3: Cross multiply
    130,411.08x = 195,728.40 × 129,429.36
  4. Step 4: Simplify right side
    130,411.08x = 25,333,001,545.82
  5. Step 5: Solve for x
    x = 25,333,001,545.82/130,411.08
  6. Step 6: Final answer
    x = 194,254.98

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1.5x scale

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.