Home / 128,244.20-176,925.24-85,244.48

Finding the Fourth Proportional to 128,244.20, 176,925.24 and 85,244.48

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Solution

The fourth proportional to 128,244.20, 176,925.24 and 85,244.48 is: 117,602.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,244.20 : 176,925.24 = 85,244.48 : x
  2. Step 2: Convert to fraction form
    128,244.20/176,925.24 = 85,244.48/x
  3. Step 3: Cross multiply
    128,244.20x = 176,925.24 × 85,244.48
  4. Step 4: Simplify right side
    128,244.20x = 15,081,900,082.68
  5. Step 5: Solve for x
    x = 15,081,900,082.68/128,244.20
  6. Step 6: Final answer
    x = 117,602.98

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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.