Home / 187,080.40-280,426.20-102,710.80

Finding the Fourth Proportional to 187,080.40, 280,426.20 and 102,710.80

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Solution

The fourth proportional to 187,080.40, 280,426.20 and 102,710.80 is: 153,959.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,080.40 : 280,426.20 = 102,710.80 : x
  2. Step 2: Convert to fraction form
    187,080.40/280,426.20 = 102,710.80/x
  3. Step 3: Cross multiply
    187,080.40x = 280,426.20 × 102,710.80
  4. Step 4: Simplify right side
    187,080.40x = 28,802,799,342.96
  5. Step 5: Solve for x
    x = 28,802,799,342.96/187,080.40
  6. Step 6: Final answer
    x = 153,959.47

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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.