Home / 111,127.17-153,354.29-60,138.77

Finding the Fourth Proportional to 111,127.17, 153,354.29 and 60,138.77

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Solution

The fourth proportional to 111,127.17, 153,354.29 and 60,138.77 is: 82,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,127.17 : 153,354.29 = 60,138.77 : x
  2. Step 2: Convert to fraction form
    111,127.17/153,354.29 = 60,138.77/x
  3. Step 3: Cross multiply
    111,127.17x = 153,354.29 × 60,138.77
  4. Step 4: Simplify right side
    111,127.17x = 9,222,538,374.82
  5. Step 5: Solve for x
    x = 9,222,538,374.82/111,127.17
  6. Step 6: Final answer
    x = 82,990.85

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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.