Home / 119,143.47-164,418.55-68,156.76

Finding the Fourth Proportional to 119,143.47, 164,418.55 and 68,156.76

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Solution

The fourth proportional to 119,143.47, 164,418.55 and 68,156.76 is: 94,056.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,143.47 : 164,418.55 = 68,156.76 : x
  2. Step 2: Convert to fraction form
    119,143.47/164,418.55 = 68,156.76/x
  3. Step 3: Cross multiply
    119,143.47x = 164,418.55 × 68,156.76
  4. Step 4: Simplify right side
    119,143.47x = 11,206,235,722.16
  5. Step 5: Solve for x
    x = 11,206,235,722.16/119,143.47
  6. Step 6: Final answer
    x = 94,056.65

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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.