Home / 153,712.43-212,221.88-96,430.29

Finding the Fourth Proportional to 153,712.43, 212,221.88 and 96,430.29

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Solution

The fourth proportional to 153,712.43, 212,221.88 and 96,430.29 is: 133,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,712.43 : 212,221.88 = 96,430.29 : x
  2. Step 2: Convert to fraction form
    153,712.43/212,221.88 = 96,430.29/x
  3. Step 3: Cross multiply
    153,712.43x = 212,221.88 × 96,430.29
  4. Step 4: Simplify right side
    153,712.43x = 20,464,615,889.48
  5. Step 5: Solve for x
    x = 20,464,615,889.48/153,712.43
  6. Step 6: Final answer
    x = 133,135.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.