Home / 208,117.20-287,203.86-112,626.12

Finding the Fourth Proportional to 208,117.20, 287,203.86 and 112,626.12

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Solution

The fourth proportional to 208,117.20, 287,203.86 and 112,626.12 is: 155,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,117.20 : 287,203.86 = 112,626.12 : x
  2. Step 2: Convert to fraction form
    208,117.20/287,203.86 = 112,626.12/x
  3. Step 3: Cross multiply
    208,117.20x = 287,203.86 × 112,626.12
  4. Step 4: Simplify right side
    208,117.20x = 32,346,656,400.82
  5. Step 5: Solve for x
    x = 32,346,656,400.82/208,117.20
  6. Step 6: Final answer
    x = 155,425.20

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1.5x scale

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.