Home / 210,565.32-316,066.68-121,991.82

Finding the Fourth Proportional to 210,565.32, 316,066.68 and 121,991.82

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Solution

The fourth proportional to 210,565.32, 316,066.68 and 121,991.82 is: 183,114.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,565.32 : 316,066.68 = 121,991.82 : x
  2. Step 2: Convert to fraction form
    210,565.32/316,066.68 = 121,991.82/x
  3. Step 3: Cross multiply
    210,565.32x = 316,066.68 × 121,991.82
  4. Step 4: Simplify right side
    210,565.32x = 38,557,549,534.56
  5. Step 5: Solve for x
    x = 38,557,549,534.56/210,565.32
  6. Step 6: Final answer
    x = 183,114.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.