Home / 97,155.40-134,685.88-91,833.72

Finding the Fourth Proportional to 97,155.40, 134,685.88 and 91,833.72

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Solution

The fourth proportional to 97,155.40, 134,685.88 and 91,833.72 is: 127,308.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,155.40 : 134,685.88 = 91,833.72 : x
  2. Step 2: Convert to fraction form
    97,155.40/134,685.88 = 91,833.72/x
  3. Step 3: Cross multiply
    97,155.40x = 134,685.88 × 91,833.72
  4. Step 4: Simplify right side
    97,155.40x = 12,368,705,391.87
  5. Step 5: Solve for x
    x = 12,368,705,391.87/97,155.40
  6. Step 6: Final answer
    x = 127,308.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.