Home / 136,487.40-204,731.10-70,132.20

Finding the Fourth Proportional to 136,487.40, 204,731.10 and 70,132.20

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Solution

The fourth proportional to 136,487.40, 204,731.10 and 70,132.20 is: 105,198.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,487.40 : 204,731.10 = 70,132.20 : x
  2. Step 2: Convert to fraction form
    136,487.40/204,731.10 = 70,132.20/x
  3. Step 3: Cross multiply
    136,487.40x = 204,731.10 × 70,132.20
  4. Step 4: Simplify right side
    136,487.40x = 14,358,242,451.42
  5. Step 5: Solve for x
    x = 14,358,242,451.42/136,487.40
  6. Step 6: Final answer
    x = 105,198.30

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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.