Home / 91,955.38-137,128.36-91,114.58

Finding the Fourth Proportional to 91,955.38, 137,128.36 and 91,114.58

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Solution

The fourth proportional to 91,955.38, 137,128.36 and 91,114.58 is: 135,874.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,955.38 : 137,128.36 = 91,114.58 : x
  2. Step 2: Convert to fraction form
    91,955.38/137,128.36 = 91,114.58/x
  3. Step 3: Cross multiply
    91,955.38x = 137,128.36 × 91,114.58
  4. Step 4: Simplify right side
    91,955.38x = 12,494,392,927.49
  5. Step 5: Solve for x
    x = 12,494,392,927.49/91,955.38
  6. Step 6: Final answer
    x = 135,874.52

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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.