Home / 112,672.04-155,487.45-61,688.07

Finding the Fourth Proportional to 112,672.04, 155,487.45 and 61,688.07

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Solution

The fourth proportional to 112,672.04, 155,487.45 and 61,688.07 is: 85,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,672.04 : 155,487.45 = 61,688.07 : x
  2. Step 2: Convert to fraction form
    112,672.04/155,487.45 = 61,688.07/x
  3. Step 3: Cross multiply
    112,672.04x = 155,487.45 × 61,688.07
  4. Step 4: Simplify right side
    112,672.04x = 9,591,720,931.05
  5. Step 5: Solve for x
    x = 9,591,720,931.05/112,672.04
  6. Step 6: Final answer
    x = 85,129.56

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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.