Home / 130,740.72-180,416.88-74,150.88

Finding the Fourth Proportional to 130,740.72, 180,416.88 and 74,150.88

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Solution

The fourth proportional to 130,740.72, 180,416.88 and 74,150.88 is: 102,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,740.72 : 180,416.88 = 74,150.88 : x
  2. Step 2: Convert to fraction form
    130,740.72/180,416.88 = 74,150.88/x
  3. Step 3: Cross multiply
    130,740.72x = 180,416.88 × 74,150.88
  4. Step 4: Simplify right side
    130,740.72x = 13,378,070,418.85
  5. Step 5: Solve for x
    x = 13,378,070,418.85/130,740.72
  6. Step 6: Final answer
    x = 102,325.20

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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.