Home / 112,829.93-155,684.87-72,534.45

Finding the Fourth Proportional to 112,829.93, 155,684.87 and 72,534.45

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Solution

The fourth proportional to 112,829.93, 155,684.87 and 72,534.45 is: 100,084.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,829.93 : 155,684.87 = 72,534.45 : x
  2. Step 2: Convert to fraction form
    112,829.93/155,684.87 = 72,534.45/x
  3. Step 3: Cross multiply
    112,829.93x = 155,684.87 × 72,534.45
  4. Step 4: Simplify right side
    112,829.93x = 11,292,516,056.10
  5. Step 5: Solve for x
    x = 11,292,516,056.10/112,829.93
  6. Step 6: Final answer
    x = 100,084.41

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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.