Home / 112,672.16-155,487.96-61,685.36

Finding the Fourth Proportional to 112,672.16, 155,487.96 and 61,685.36

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Solution

The fourth proportional to 112,672.16, 155,487.96 and 61,685.36 is: 85,126.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,672.16 : 155,487.96 = 61,685.36 : x
  2. Step 2: Convert to fraction form
    112,672.16/155,487.96 = 61,685.36/x
  3. Step 3: Cross multiply
    112,672.16x = 155,487.96 × 61,685.36
  4. Step 4: Simplify right side
    112,672.16x = 9,591,330,010.83
  5. Step 5: Solve for x
    x = 9,591,330,010.83/112,672.16
  6. Step 6: Final answer
    x = 85,126.00

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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.