Home / 92,213.10-138,319.65-90,830.70

Finding the Fourth Proportional to 92,213.10, 138,319.65 and 90,830.70

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Solution

The fourth proportional to 92,213.10, 138,319.65 and 90,830.70 is: 136,246.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,213.10 : 138,319.65 = 90,830.70 : x
  2. Step 2: Convert to fraction form
    92,213.10/138,319.65 = 90,830.70/x
  3. Step 3: Cross multiply
    92,213.10x = 138,319.65 × 90,830.70
  4. Step 4: Simplify right side
    92,213.10x = 12,563,670,633.26
  5. Step 5: Solve for x
    x = 12,563,670,633.26/92,213.10
  6. Step 6: Final answer
    x = 136,246.05

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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.