Home / 112,702.43-155,522.45-61,715.77

Finding the Fourth Proportional to 112,702.43, 155,522.45 and 61,715.77

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Solution

The fourth proportional to 112,702.43, 155,522.45 and 61,715.77 is: 85,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,702.43 : 155,522.45 = 61,715.77 : x
  2. Step 2: Convert to fraction form
    112,702.43/155,522.45 = 61,715.77/x
  3. Step 3: Cross multiply
    112,702.43x = 155,522.45 × 61,715.77
  4. Step 4: Simplify right side
    112,702.43x = 9,598,187,754.04
  5. Step 5: Solve for x
    x = 9,598,187,754.04/112,702.43
  6. Step 6: Final answer
    x = 85,163.98

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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.