Home / 105,531.52-158,046-61,064.56

Finding the Fourth Proportional to 105,531.52, 158,046 and 61,064.56

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Solution

The fourth proportional to 105,531.52, 158,046 and 61,064.56 is: 91,451.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,531.52 : 158,046 = 61,064.56 : x
  2. Step 2: Convert to fraction form
    105,531.52/158,046 = 61,064.56/x
  3. Step 3: Cross multiply
    105,531.52x = 158,046 × 61,064.56
  4. Step 4: Simplify right side
    105,531.52x = 9,651,009,449.76
  5. Step 5: Solve for x
    x = 9,651,009,449.76/105,531.52
  6. Step 6: Final answer
    x = 91,451.44

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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.