Home / 122,948.87-169,681.59-71,958.56

Finding the Fourth Proportional to 122,948.87, 169,681.59 and 71,958.56

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Solution

The fourth proportional to 122,948.87, 169,681.59 and 71,958.56 is: 99,309.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,948.87 : 169,681.59 = 71,958.56 : x
  2. Step 2: Convert to fraction form
    122,948.87/169,681.59 = 71,958.56/x
  3. Step 3: Cross multiply
    122,948.87x = 169,681.59 × 71,958.56
  4. Step 4: Simplify right side
    122,948.87x = 12,210,042,026.50
  5. Step 5: Solve for x
    x = 12,210,042,026.50/122,948.87
  6. Step 6: Final answer
    x = 99,309.92

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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.