Home / 92,128.80-138,206.16-47,166.24

Finding the Fourth Proportional to 92,128.80, 138,206.16 and 47,166.24

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Solution

The fourth proportional to 92,128.80, 138,206.16 and 47,166.24 is: 70,755.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,128.80 : 138,206.16 = 47,166.24 : x
  2. Step 2: Convert to fraction form
    92,128.80/138,206.16 = 47,166.24/x
  3. Step 3: Cross multiply
    92,128.80x = 138,206.16 × 47,166.24
  4. Step 4: Simplify right side
    92,128.80x = 6,518,664,912.04
  5. Step 5: Solve for x
    x = 6,518,664,912.04/92,128.80
  6. Step 6: Final answer
    x = 70,755.99

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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.