Home / 143,373.51-197,854.38-79,710.75

Finding the Fourth Proportional to 143,373.51, 197,854.38 and 79,710.75

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Solution

The fourth proportional to 143,373.51, 197,854.38 and 79,710.75 is: 110,000.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,373.51 : 197,854.38 = 79,710.75 : x
  2. Step 2: Convert to fraction form
    143,373.51/197,854.38 = 79,710.75/x
  3. Step 3: Cross multiply
    143,373.51x = 197,854.38 × 79,710.75
  4. Step 4: Simplify right side
    143,373.51x = 15,771,121,020.59
  5. Step 5: Solve for x
    x = 15,771,121,020.59/143,373.51
  6. Step 6: Final answer
    x = 110,000.24

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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.