Home / 188,701.13-260,407.56-103,818.20

Finding the Fourth Proportional to 188,701.13, 260,407.56 and 103,818.20

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Solution

The fourth proportional to 188,701.13, 260,407.56 and 103,818.20 is: 143,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,701.13 : 260,407.56 = 103,818.20 : x
  2. Step 2: Convert to fraction form
    188,701.13/260,407.56 = 103,818.20/x
  3. Step 3: Cross multiply
    188,701.13x = 260,407.56 × 103,818.20
  4. Step 4: Simplify right side
    188,701.13x = 27,035,042,843.55
  5. Step 5: Solve for x
    x = 27,035,042,843.55/188,701.13
  6. Step 6: Final answer
    x = 143,269.11

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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.