Home / 153,422.28-229,984.65-78,577.74

Finding the Fourth Proportional to 153,422.28, 229,984.65 and 78,577.74

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Solution

The fourth proportional to 153,422.28, 229,984.65 and 78,577.74 is: 117,790.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,422.28 : 229,984.65 = 78,577.74 : x
  2. Step 2: Convert to fraction form
    153,422.28/229,984.65 = 78,577.74/x
  3. Step 3: Cross multiply
    153,422.28x = 229,984.65 × 78,577.74
  4. Step 4: Simplify right side
    153,422.28x = 18,071,674,031.69
  5. Step 5: Solve for x
    x = 18,071,674,031.69/153,422.28
  6. Step 6: Final answer
    x = 117,790.42

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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.