Home / 130,432.05-195,648.12-71,235.36

Finding the Fourth Proportional to 130,432.05, 195,648.12 and 71,235.36

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Solution

The fourth proportional to 130,432.05, 195,648.12 and 71,235.36 is: 106,853.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,432.05 : 195,648.12 = 71,235.36 : x
  2. Step 2: Convert to fraction form
    130,432.05/195,648.12 = 71,235.36/x
  3. Step 3: Cross multiply
    130,432.05x = 195,648.12 × 71,235.36
  4. Step 4: Simplify right side
    130,432.05x = 13,937,064,261.52
  5. Step 5: Solve for x
    x = 13,937,064,261.52/130,432.05
  6. Step 6: Final answer
    x = 106,853.06

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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.