Home / 90,246.92-124,465.20-67,638.98

Finding the Fourth Proportional to 90,246.92, 124,465.20 and 67,638.98

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Solution

The fourth proportional to 90,246.92, 124,465.20 and 67,638.98 is: 93,285.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,246.92 : 124,465.20 = 67,638.98 : x
  2. Step 2: Convert to fraction form
    90,246.92/124,465.20 = 67,638.98/x
  3. Step 3: Cross multiply
    90,246.92x = 124,465.20 × 67,638.98
  4. Step 4: Simplify right side
    90,246.92x = 8,418,699,173.50
  5. Step 5: Solve for x
    x = 8,418,699,173.50/90,246.92
  6. Step 6: Final answer
    x = 93,285.17

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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.