Home / 105,902.60-158,812.29-38,418.50

Finding the Fourth Proportional to 105,902.60, 158,812.29 and 38,418.50

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Solution

The fourth proportional to 105,902.60, 158,812.29 and 38,418.50 is: 57,612.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,902.60 : 158,812.29 = 38,418.50 : x
  2. Step 2: Convert to fraction form
    105,902.60/158,812.29 = 38,418.50/x
  3. Step 3: Cross multiply
    105,902.60x = 158,812.29 × 38,418.50
  4. Step 4: Simplify right side
    105,902.60x = 6,101,329,963.37
  5. Step 5: Solve for x
    x = 6,101,329,963.37/105,902.60
  6. Step 6: Final answer
    x = 57,612.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.