Home / 153,110.86-229,712.95-78,283.53

Finding the Fourth Proportional to 153,110.86, 229,712.95 and 78,283.53

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Solution

The fourth proportional to 153,110.86, 229,712.95 and 78,283.53 is: 117,449.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,110.86 : 229,712.95 = 78,283.53 : x
  2. Step 2: Convert to fraction form
    153,110.86/229,712.95 = 78,283.53/x
  3. Step 3: Cross multiply
    153,110.86x = 229,712.95 × 78,283.53
  4. Step 4: Simplify right side
    153,110.86x = 17,982,740,270.22
  5. Step 5: Solve for x
    x = 17,982,740,270.22/153,110.86
  6. Step 6: Final answer
    x = 117,449.15

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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.