Home / 153,270.90-229,903.68-68,971.40

Finding the Fourth Proportional to 153,270.90, 229,903.68 and 68,971.40

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Solution

The fourth proportional to 153,270.90, 229,903.68 and 68,971.40 is: 103,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,270.90 : 229,903.68 = 68,971.40 : x
  2. Step 2: Convert to fraction form
    153,270.90/229,903.68 = 68,971.40/x
  3. Step 3: Cross multiply
    153,270.90x = 229,903.68 × 68,971.40
  4. Step 4: Simplify right side
    153,270.90x = 15,856,778,674.75
  5. Step 5: Solve for x
    x = 15,856,778,674.75/153,270.90
  6. Step 6: Final answer
    x = 103,455.90

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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.