Home / 129,970.04-179,338.36-73,380.20

Finding the Fourth Proportional to 129,970.04, 179,338.36 and 73,380.20

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Solution

The fourth proportional to 129,970.04, 179,338.36 and 73,380.20 is: 101,253.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,970.04 : 179,338.36 = 73,380.20 : x
  2. Step 2: Convert to fraction form
    129,970.04/179,338.36 = 73,380.20/x
  3. Step 3: Cross multiply
    129,970.04x = 179,338.36 × 73,380.20
  4. Step 4: Simplify right side
    129,970.04x = 13,159,884,724.47
  5. Step 5: Solve for x
    x = 13,159,884,724.47/129,970.04
  6. Step 6: Final answer
    x = 101,253.22

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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.