Home / 284,868.06-427,167.45-85,118.70

Finding the Fourth Proportional to 284,868.06, 427,167.45 and 85,118.70

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Solution

The fourth proportional to 284,868.06, 427,167.45 and 85,118.70 is: 127,637.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,868.06 : 427,167.45 = 85,118.70 : x
  2. Step 2: Convert to fraction form
    284,868.06/427,167.45 = 85,118.70/x
  3. Step 3: Cross multiply
    284,868.06x = 427,167.45 × 85,118.70
  4. Step 4: Simplify right side
    284,868.06x = 36,359,938,026.32
  5. Step 5: Solve for x
    x = 36,359,938,026.32/284,868.06
  6. Step 6: Final answer
    x = 127,637.82

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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.