Home / 143,149.95-197,565.08-86,592.51

Finding the Fourth Proportional to 143,149.95, 197,565.08 and 86,592.51

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Solution

The fourth proportional to 143,149.95, 197,565.08 and 86,592.51 is: 119,508.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,149.95 : 197,565.08 = 86,592.51 : x
  2. Step 2: Convert to fraction form
    143,149.95/197,565.08 = 86,592.51/x
  3. Step 3: Cross multiply
    143,149.95x = 197,565.08 × 86,592.51
  4. Step 4: Simplify right side
    143,149.95x = 17,107,655,732.59
  5. Step 5: Solve for x
    x = 17,107,655,732.59/143,149.95
  6. Step 6: Final answer
    x = 119,508.64

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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.