Home / 168,513.79-232,442.24-128,139.04

Finding the Fourth Proportional to 168,513.79, 232,442.24 and 128,139.04

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Solution

The fourth proportional to 168,513.79, 232,442.24 and 128,139.04 is: 176,750.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,513.79 : 232,442.24 = 128,139.04 : x
  2. Step 2: Convert to fraction form
    168,513.79/232,442.24 = 128,139.04/x
  3. Step 3: Cross multiply
    168,513.79x = 232,442.24 × 128,139.04
  4. Step 4: Simplify right side
    168,513.79x = 29,784,924,552.20
  5. Step 5: Solve for x
    x = 29,784,924,552.20/168,513.79
  6. Step 6: Final answer
    x = 176,750.67

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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.