Home / 87,505.03-130,574.71-78,080.14

Finding the Fourth Proportional to 87,505.03, 130,574.71 and 78,080.14

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Solution

The fourth proportional to 87,505.03, 130,574.71 and 78,080.14 is: 116,510.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,505.03 : 130,574.71 = 78,080.14 : x
  2. Step 2: Convert to fraction form
    87,505.03/130,574.71 = 78,080.14/x
  3. Step 3: Cross multiply
    87,505.03x = 130,574.71 × 78,080.14
  4. Step 4: Simplify right side
    87,505.03x = 10,195,291,637.26
  5. Step 5: Solve for x
    x = 10,195,291,637.26/87,505.03
  6. Step 6: Final answer
    x = 116,510.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.