Home / 153,110.46-229,712.38-78,283.16

Finding the Fourth Proportional to 153,110.46, 229,712.38 and 78,283.16

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Solution

The fourth proportional to 153,110.46, 229,712.38 and 78,283.16 is: 117,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,110.46 : 229,712.38 = 78,283.16 : x
  2. Step 2: Convert to fraction form
    153,110.46/229,712.38 = 78,283.16/x
  3. Step 3: Cross multiply
    153,110.46x = 229,712.38 × 78,283.16
  4. Step 4: Simplify right side
    153,110.46x = 17,982,609,653.25
  5. Step 5: Solve for x
    x = 17,982,609,653.25/153,110.46
  6. Step 6: Final answer
    x = 117,448.60

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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.