Home / 134,680.05-185,817.29-78,080.13

Finding the Fourth Proportional to 134,680.05, 185,817.29 and 78,080.13

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Solution

The fourth proportional to 134,680.05, 185,817.29 and 78,080.13 is: 107,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,680.05 : 185,817.29 = 78,080.13 : x
  2. Step 2: Convert to fraction form
    134,680.05/185,817.29 = 78,080.13/x
  3. Step 3: Cross multiply
    134,680.05x = 185,817.29 × 78,080.13
  4. Step 4: Simplify right side
    134,680.05x = 14,508,637,769.05
  5. Step 5: Solve for x
    x = 14,508,637,769.05/134,680.05
  6. Step 6: Final answer
    x = 107,726.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.