Home / 188,637.12-260,319.36-103,760.64

Finding the Fourth Proportional to 188,637.12, 260,319.36 and 103,760.64

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Solution

The fourth proportional to 188,637.12, 260,319.36 and 103,760.64 is: 143,189.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,637.12 : 260,319.36 = 103,760.64 : x
  2. Step 2: Convert to fraction form
    188,637.12/260,319.36 = 103,760.64/x
  3. Step 3: Cross multiply
    188,637.12x = 260,319.36 × 103,760.64
  4. Step 4: Simplify right side
    188,637.12x = 27,010,903,397.99
  5. Step 5: Solve for x
    x = 27,010,903,397.99/188,637.12
  6. Step 6: Final answer
    x = 143,189.76

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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.