Home / 125,702.06-173,299.05-85,345.76

Finding the Fourth Proportional to 125,702.06, 173,299.05 and 85,345.76

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Solution

The fourth proportional to 125,702.06, 173,299.05 and 85,345.76 is: 117,661.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,702.06 : 173,299.05 = 85,345.76 : x
  2. Step 2: Convert to fraction form
    125,702.06/173,299.05 = 85,345.76/x
  3. Step 3: Cross multiply
    125,702.06x = 173,299.05 × 85,345.76
  4. Step 4: Simplify right side
    125,702.06x = 14,790,339,129.53
  5. Step 5: Solve for x
    x = 14,790,339,129.53/125,702.06
  6. Step 6: Final answer
    x = 117,661.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.