Home / 151,671.38-209,306.30-83,688.32

Finding the Fourth Proportional to 151,671.38, 209,306.30 and 83,688.32

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Solution

The fourth proportional to 151,671.38, 209,306.30 and 83,688.32 is: 115,489.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,671.38 : 209,306.30 = 83,688.32 : x
  2. Step 2: Convert to fraction form
    151,671.38/209,306.30 = 83,688.32/x
  3. Step 3: Cross multiply
    151,671.38x = 209,306.30 × 83,688.32
  4. Step 4: Simplify right side
    151,671.38x = 17,516,492,717.24
  5. Step 5: Solve for x
    x = 17,516,492,717.24/151,671.38
  6. Step 6: Final answer
    x = 115,489.77

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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.