Home / 91,557.73-136,725.71-71,612.29

Finding the Fourth Proportional to 91,557.73, 136,725.71 and 71,612.29

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Solution

The fourth proportional to 91,557.73, 136,725.71 and 71,612.29 is: 106,940.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,557.73 : 136,725.71 = 71,612.29 : x
  2. Step 2: Convert to fraction form
    91,557.73/136,725.71 = 71,612.29/x
  3. Step 3: Cross multiply
    91,557.73x = 136,725.71 × 71,612.29
  4. Step 4: Simplify right side
    91,557.73x = 9,791,241,194.98
  5. Step 5: Solve for x
    x = 9,791,241,194.98/91,557.73
  6. Step 6: Final answer
    x = 106,940.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.