Home / 104,006.10-156,009.15-86,510.10

Finding the Fourth Proportional to 104,006.10, 156,009.15 and 86,510.10

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Solution

The fourth proportional to 104,006.10, 156,009.15 and 86,510.10 is: 129,765.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,006.10 : 156,009.15 = 86,510.10 : x
  2. Step 2: Convert to fraction form
    104,006.10/156,009.15 = 86,510.10/x
  3. Step 3: Cross multiply
    104,006.10x = 156,009.15 × 86,510.10
  4. Step 4: Simplify right side
    104,006.10x = 13,496,367,167.42
  5. Step 5: Solve for x
    x = 13,496,367,167.42/104,006.10
  6. Step 6: Final answer
    x = 129,765.15

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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.