Home / 124,871.60-187,307.40-40,639.70

Finding the Fourth Proportional to 124,871.60, 187,307.40 and 40,639.70

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Solution

The fourth proportional to 124,871.60, 187,307.40 and 40,639.70 is: 60,959.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,871.60 : 187,307.40 = 40,639.70 : x
  2. Step 2: Convert to fraction form
    124,871.60/187,307.40 = 40,639.70/x
  3. Step 3: Cross multiply
    124,871.60x = 187,307.40 × 40,639.70
  4. Step 4: Simplify right side
    124,871.60x = 7,612,116,543.78
  5. Step 5: Solve for x
    x = 7,612,116,543.78/124,871.60
  6. Step 6: Final answer
    x = 60,959.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.