Home / 157,565.88-217,521.18-121,675.32

Finding the Fourth Proportional to 157,565.88, 217,521.18 and 121,675.32

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Solution

The fourth proportional to 157,565.88, 217,521.18 and 121,675.32 is: 167,973.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,565.88 : 217,521.18 = 121,675.32 : x
  2. Step 2: Convert to fraction form
    157,565.88/217,521.18 = 121,675.32/x
  3. Step 3: Cross multiply
    157,565.88x = 217,521.18 × 121,675.32
  4. Step 4: Simplify right side
    157,565.88x = 26,466,959,183.28
  5. Step 5: Solve for x
    x = 26,466,959,183.28/157,565.88
  6. Step 6: Final answer
    x = 167,973.92

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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.