Home / 172,780.28-238,437.16-97,328.76

Finding the Fourth Proportional to 172,780.28, 238,437.16 and 97,328.76

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Solution

The fourth proportional to 172,780.28, 238,437.16 and 97,328.76 is: 134,313.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,780.28 : 238,437.16 = 97,328.76 : x
  2. Step 2: Convert to fraction form
    172,780.28/238,437.16 = 97,328.76/x
  3. Step 3: Cross multiply
    172,780.28x = 238,437.16 × 97,328.76
  4. Step 4: Simplify right side
    172,780.28x = 23,206,793,120.72
  5. Step 5: Solve for x
    x = 23,206,793,120.72/172,780.28
  6. Step 6: Final answer
    x = 134,313.90

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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.