Home / 112,630.93-155,368.28-72,299.41

Finding the Fourth Proportional to 112,630.93, 155,368.28 and 72,299.41

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Solution

The fourth proportional to 112,630.93, 155,368.28 and 72,299.41 is: 99,733.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,630.93 : 155,368.28 = 72,299.41 : x
  2. Step 2: Convert to fraction form
    112,630.93/155,368.28 = 72,299.41/x
  3. Step 3: Cross multiply
    112,630.93x = 155,368.28 × 72,299.41
  4. Step 4: Simplify right side
    112,630.93x = 11,233,034,769.04
  5. Step 5: Solve for x
    x = 11,233,034,769.04/112,630.93
  6. Step 6: Final answer
    x = 99,733.13

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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.