Home / 187,250.20-280,875.30-127,115.80

Finding the Fourth Proportional to 187,250.20, 280,875.30 and 127,115.80

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Solution

The fourth proportional to 187,250.20, 280,875.30 and 127,115.80 is: 190,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,250.20 : 280,875.30 = 127,115.80 : x
  2. Step 2: Convert to fraction form
    187,250.20/280,875.30 = 127,115.80/x
  3. Step 3: Cross multiply
    187,250.20x = 280,875.30 × 127,115.80
  4. Step 4: Simplify right side
    187,250.20x = 35,703,688,459.74
  5. Step 5: Solve for x
    x = 35,703,688,459.74/187,250.20
  6. Step 6: Final answer
    x = 190,673.70

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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.