Home / 189,319.46-261,252.06-108,690.24

Finding the Fourth Proportional to 189,319.46, 261,252.06 and 108,690.24

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Solution

The fourth proportional to 189,319.46, 261,252.06 and 108,690.24 is: 149,987.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,319.46 : 261,252.06 = 108,690.24 : x
  2. Step 2: Convert to fraction form
    189,319.46/261,252.06 = 108,690.24/x
  3. Step 3: Cross multiply
    189,319.46x = 261,252.06 × 108,690.24
  4. Step 4: Simplify right side
    189,319.46x = 28,395,549,101.89
  5. Step 5: Solve for x
    x = 28,395,549,101.89/189,319.46
  6. Step 6: Final answer
    x = 149,987.48

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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.