Home / 85,569.94-127,737.55-72,298.90

Finding the Fourth Proportional to 85,569.94, 127,737.55 and 72,298.90

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Solution

The fourth proportional to 85,569.94, 127,737.55 and 72,298.90 is: 107,926.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,569.94 : 127,737.55 = 72,298.90 : x
  2. Step 2: Convert to fraction form
    85,569.94/127,737.55 = 72,298.90/x
  3. Step 3: Cross multiply
    85,569.94x = 127,737.55 × 72,298.90
  4. Step 4: Simplify right side
    85,569.94x = 9,235,284,353.70
  5. Step 5: Solve for x
    x = 9,235,284,353.70/85,569.94
  6. Step 6: Final answer
    x = 107,926.74

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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.