Home / 91,661.27-137,702.40-64,705.58

Finding the Fourth Proportional to 91,661.27, 137,702.40 and 64,705.58

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Solution

The fourth proportional to 91,661.27, 137,702.40 and 64,705.58 is: 97,206.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,661.27 : 137,702.40 = 64,705.58 : x
  2. Step 2: Convert to fraction form
    91,661.27/137,702.40 = 64,705.58/x
  3. Step 3: Cross multiply
    91,661.27x = 137,702.40 × 64,705.58
  4. Step 4: Simplify right side
    91,661.27x = 8,910,114,565.15
  5. Step 5: Solve for x
    x = 8,910,114,565.15/91,661.27
  6. Step 6: Final answer
    x = 97,206.97

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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.