Home / 187,312.20-280,968.30-112,516.80

Finding the Fourth Proportional to 187,312.20, 280,968.30 and 112,516.80

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Solution

The fourth proportional to 187,312.20, 280,968.30 and 112,516.80 is: 168,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,312.20 : 280,968.30 = 112,516.80 : x
  2. Step 2: Convert to fraction form
    187,312.20/280,968.30 = 112,516.80/x
  3. Step 3: Cross multiply
    187,312.20x = 280,968.30 × 112,516.80
  4. Step 4: Simplify right side
    187,312.20x = 31,613,654,017.44
  5. Step 5: Solve for x
    x = 31,613,654,017.44/187,312.20
  6. Step 6: Final answer
    x = 168,775.20

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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.