Home / 92,210.20-138,315.30-56,780.80

Finding the Fourth Proportional to 92,210.20, 138,315.30 and 56,780.80

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Solution

The fourth proportional to 92,210.20, 138,315.30 and 56,780.80 is: 85,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,210.20 : 138,315.30 = 56,780.80 : x
  2. Step 2: Convert to fraction form
    92,210.20/138,315.30 = 56,780.80/x
  3. Step 3: Cross multiply
    92,210.20x = 138,315.30 × 56,780.80
  4. Step 4: Simplify right side
    92,210.20x = 7,853,653,386.24
  5. Step 5: Solve for x
    x = 7,853,653,386.24/92,210.20
  6. Step 6: Final answer
    x = 85,171.20

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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.