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Finding the Fourth Proportional to 143,281.86, 197,671.23 and 86,594.82

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Solution

The fourth proportional to 143,281.86, 197,671.23 and 86,594.82 is: 119,465.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,281.86 : 197,671.23 = 86,594.82 : x
  2. Step 2: Convert to fraction form
    143,281.86/197,671.23 = 86,594.82/x
  3. Step 3: Cross multiply
    143,281.86x = 197,671.23 × 86,594.82
  4. Step 4: Simplify right side
    143,281.86x = 17,117,304,581.03
  5. Step 5: Solve for x
    x = 17,117,304,581.03/143,281.86
  6. Step 6: Final answer
    x = 119,465.96

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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.