Home / 115,210.64-172,565.40-55,921.52

Finding the Fourth Proportional to 115,210.64, 172,565.40 and 55,921.52

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Solution

The fourth proportional to 115,210.64, 172,565.40 and 55,921.52 is: 83,760.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,210.64 : 172,565.40 = 55,921.52 : x
  2. Step 2: Convert to fraction form
    115,210.64/172,565.40 = 55,921.52/x
  3. Step 3: Cross multiply
    115,210.64x = 172,565.40 × 55,921.52
  4. Step 4: Simplify right side
    115,210.64x = 9,650,119,467.41
  5. Step 5: Solve for x
    x = 9,650,119,467.41/115,210.64
  6. Step 6: Final answer
    x = 83,760.66

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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.