Home / 187,091.10-280,673.10-74,752.20

Finding the Fourth Proportional to 187,091.10, 280,673.10 and 74,752.20

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Solution

The fourth proportional to 187,091.10, 280,673.10 and 74,752.20 is: 112,142.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,091.10 : 280,673.10 = 74,752.20 : x
  2. Step 2: Convert to fraction form
    187,091.10/280,673.10 = 74,752.20/x
  3. Step 3: Cross multiply
    187,091.10x = 280,673.10 × 74,752.20
  4. Step 4: Simplify right side
    187,091.10x = 20,980,931,705.82
  5. Step 5: Solve for x
    x = 20,980,931,705.82/187,091.10
  6. Step 6: Final answer
    x = 112,142.86

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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.