Home / 140,058.50-193,283.36-76,398.57

Finding the Fourth Proportional to 140,058.50, 193,283.36 and 76,398.57

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Solution

The fourth proportional to 140,058.50, 193,283.36 and 76,398.57 is: 105,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,058.50 : 193,283.36 = 76,398.57 : x
  2. Step 2: Convert to fraction form
    140,058.50/193,283.36 = 76,398.57/x
  3. Step 3: Cross multiply
    140,058.50x = 193,283.36 × 76,398.57
  4. Step 4: Simplify right side
    140,058.50x = 14,766,572,308.80
  5. Step 5: Solve for x
    x = 14,766,572,308.80/140,058.50
  6. Step 6: Final answer
    x = 105,431.46

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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.