Home / 142,720.10-214,080.15-83,525.30

Finding the Fourth Proportional to 142,720.10, 214,080.15 and 83,525.30

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Solution

The fourth proportional to 142,720.10, 214,080.15 and 83,525.30 is: 125,287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,720.10 : 214,080.15 = 83,525.30 : x
  2. Step 2: Convert to fraction form
    142,720.10/214,080.15 = 83,525.30/x
  3. Step 3: Cross multiply
    142,720.10x = 214,080.15 × 83,525.30
  4. Step 4: Simplify right side
    142,720.10x = 17,881,108,752.80
  5. Step 5: Solve for x
    x = 17,881,108,752.80/142,720.10
  6. Step 6: Final answer
    x = 125,287.95

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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.