Home / 153,289.28-229,856.16-70,112

Finding the Fourth Proportional to 153,289.28, 229,856.16 and 70,112

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Solution

The fourth proportional to 153,289.28, 229,856.16 and 70,112 is: 105,132.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,289.28 : 229,856.16 = 70,112 : x
  2. Step 2: Convert to fraction form
    153,289.28/229,856.16 = 70,112/x
  3. Step 3: Cross multiply
    153,289.28x = 229,856.16 × 70,112
  4. Step 4: Simplify right side
    153,289.28x = 16,115,675,089.92
  5. Step 5: Solve for x
    x = 16,115,675,089.92/153,289.28
  6. Step 6: Final answer
    x = 105,132.43

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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.