Home / 102,131.12-140,894.88-59,670.56

Finding the Fourth Proportional to 102,131.12, 140,894.88 and 59,670.56

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Solution

The fourth proportional to 102,131.12, 140,894.88 and 59,670.56 is: 82,318.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,131.12 : 140,894.88 = 59,670.56 : x
  2. Step 2: Convert to fraction form
    102,131.12/140,894.88 = 59,670.56/x
  3. Step 3: Cross multiply
    102,131.12x = 140,894.88 × 59,670.56
  4. Step 4: Simplify right side
    102,131.12x = 8,407,276,390.73
  5. Step 5: Solve for x
    x = 8,407,276,390.73/102,131.12
  6. Step 6: Final answer
    x = 82,318.46

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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.