Home / 111,390.19-153,718.82-60,402.88

Finding the Fourth Proportional to 111,390.19, 153,718.82 and 60,402.88

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Solution

The fourth proportional to 111,390.19, 153,718.82 and 60,402.88 is: 83,356.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,390.19 : 153,718.82 = 60,402.88 : x
  2. Step 2: Convert to fraction form
    111,390.19/153,718.82 = 60,402.88/x
  3. Step 3: Cross multiply
    111,390.19x = 153,718.82 × 60,402.88
  4. Step 4: Simplify right side
    111,390.19x = 9,285,059,438.20
  5. Step 5: Solve for x
    x = 9,285,059,438.20/111,390.19
  6. Step 6: Final answer
    x = 83,356.17

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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.