Home / 153,109.81-229,711.44-78,282.52

Finding the Fourth Proportional to 153,109.81, 229,711.44 and 78,282.52

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Solution

The fourth proportional to 153,109.81, 229,711.44 and 78,282.52 is: 117,447.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,109.81 : 229,711.44 = 78,282.52 : x
  2. Step 2: Convert to fraction form
    153,109.81/229,711.44 = 78,282.52/x
  3. Step 3: Cross multiply
    153,109.81x = 229,711.44 × 78,282.52
  4. Step 4: Simplify right side
    153,109.81x = 17,982,390,115.31
  5. Step 5: Solve for x
    x = 17,982,390,115.31/153,109.81
  6. Step 6: Final answer
    x = 117,447.67

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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.