Home / 92,215.10-138,322.65-90,832.70

Finding the Fourth Proportional to 92,215.10, 138,322.65 and 90,832.70

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Solution

The fourth proportional to 92,215.10, 138,322.65 and 90,832.70 is: 136,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,215.10 : 138,322.65 = 90,832.70 : x
  2. Step 2: Convert to fraction form
    92,215.10/138,322.65 = 90,832.70/x
  3. Step 3: Cross multiply
    92,215.10x = 138,322.65 × 90,832.70
  4. Step 4: Simplify right side
    92,215.10x = 12,564,219,770.66
  5. Step 5: Solve for x
    x = 12,564,219,770.66/92,215.10
  6. Step 6: Final answer
    x = 136,249.05

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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.