Home / 130,873.20-180,605.88-74,285.52

Finding the Fourth Proportional to 130,873.20, 180,605.88 and 74,285.52

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Solution

The fourth proportional to 130,873.20, 180,605.88 and 74,285.52 is: 102,514.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,873.20 : 180,605.88 = 74,285.52 : x
  2. Step 2: Convert to fraction form
    130,873.20/180,605.88 = 74,285.52/x
  3. Step 3: Cross multiply
    130,873.20x = 180,605.88 × 74,285.52
  4. Step 4: Simplify right side
    130,873.20x = 13,416,401,710.86
  5. Step 5: Solve for x
    x = 13,416,401,710.86/130,873.20
  6. Step 6: Final answer
    x = 102,514.51

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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.