Home / 130,777.20-180,473.40-74,189.52

Finding the Fourth Proportional to 130,777.20, 180,473.40 and 74,189.52

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Solution

The fourth proportional to 130,777.20, 180,473.40 and 74,189.52 is: 102,382.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,777.20 : 180,473.40 = 74,189.52 : x
  2. Step 2: Convert to fraction form
    130,777.20/180,473.40 = 74,189.52/x
  3. Step 3: Cross multiply
    130,777.20x = 180,473.40 × 74,189.52
  4. Step 4: Simplify right side
    130,777.20x = 13,389,234,918.77
  5. Step 5: Solve for x
    x = 13,389,234,918.77/130,777.20
  6. Step 6: Final answer
    x = 102,382.03

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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.