Home / 130,765.47-180,451.04-74,175.63

Finding the Fourth Proportional to 130,765.47, 180,451.04 and 74,175.63

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Solution

The fourth proportional to 130,765.47, 180,451.04 and 74,175.63 is: 102,359.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,765.47 : 180,451.04 = 74,175.63 : x
  2. Step 2: Convert to fraction form
    130,765.47/180,451.04 = 74,175.63/x
  3. Step 3: Cross multiply
    130,765.47x = 180,451.04 × 74,175.63
  4. Step 4: Simplify right side
    130,765.47x = 13,385,069,205.28
  5. Step 5: Solve for x
    x = 13,385,069,205.28/130,765.47
  6. Step 6: Final answer
    x = 102,359.36

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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.