Home / 90,813.40-136,220.10-62,819.80

Finding the Fourth Proportional to 90,813.40, 136,220.10 and 62,819.80

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Solution

The fourth proportional to 90,813.40, 136,220.10 and 62,819.80 is: 94,229.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,813.40 : 136,220.10 = 62,819.80 : x
  2. Step 2: Convert to fraction form
    90,813.40/136,220.10 = 62,819.80/x
  3. Step 3: Cross multiply
    90,813.40x = 136,220.10 × 62,819.80
  4. Step 4: Simplify right side
    90,813.40x = 8,557,319,437.98
  5. Step 5: Solve for x
    x = 8,557,319,437.98/90,813.40
  6. Step 6: Final answer
    x = 94,229.70

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1.5x scale

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.