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Finding the Fourth Proportional to 126,693.66, 173,905.88 and 112,032.20

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Solution

The fourth proportional to 126,693.66, 173,905.88 and 112,032.20 is: 153,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,693.66 : 173,905.88 = 112,032.20 : x
  2. Step 2: Convert to fraction form
    126,693.66/173,905.88 = 112,032.20/x
  3. Step 3: Cross multiply
    126,693.66x = 173,905.88 × 112,032.20
  4. Step 4: Simplify right side
    126,693.66x = 19,483,058,329.34
  5. Step 5: Solve for x
    x = 19,483,058,329.34/126,693.66
  6. Step 6: Final answer
    x = 153,780.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.