Home / 208,234.20-287,363.40-112,741.02

Finding the Fourth Proportional to 208,234.20, 287,363.40 and 112,741.02

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Solution

The fourth proportional to 208,234.20, 287,363.40 and 112,741.02 is: 155,582.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,234.20 : 287,363.40 = 112,741.02 : x
  2. Step 2: Convert to fraction form
    208,234.20/287,363.40 = 112,741.02/x
  3. Step 3: Cross multiply
    208,234.20x = 287,363.40 × 112,741.02
  4. Step 4: Simplify right side
    208,234.20x = 32,397,642,826.67
  5. Step 5: Solve for x
    x = 32,397,642,826.67/208,234.20
  6. Step 6: Final answer
    x = 155,582.72

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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.