Home / 112,361.17-155,057.36-61,373.88

Finding the Fourth Proportional to 112,361.17, 155,057.36 and 61,373.88

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Solution

The fourth proportional to 112,361.17, 155,057.36 and 61,373.88 is: 84,695.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,361.17 : 155,057.36 = 61,373.88 : x
  2. Step 2: Convert to fraction form
    112,361.17/155,057.36 = 61,373.88/x
  3. Step 3: Cross multiply
    112,361.17x = 155,057.36 × 61,373.88
  4. Step 4: Simplify right side
    112,361.17x = 9,516,471,959.19
  5. Step 5: Solve for x
    x = 9,516,471,959.19/112,361.17
  6. Step 6: Final answer
    x = 84,695.38

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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.