Home / 112,700.75-155,528.94-61,712.66

Finding the Fourth Proportional to 112,700.75, 155,528.94 and 61,712.66

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Solution

The fourth proportional to 112,700.75, 155,528.94 and 61,712.66 is: 85,164.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,700.75 : 155,528.94 = 61,712.66 : x
  2. Step 2: Convert to fraction form
    112,700.75/155,528.94 = 61,712.66/x
  3. Step 3: Cross multiply
    112,700.75x = 155,528.94 × 61,712.66
  4. Step 4: Simplify right side
    112,700.75x = 9,598,104,983.20
  5. Step 5: Solve for x
    x = 9,598,104,983.20/112,700.75
  6. Step 6: Final answer
    x = 85,164.52

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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.