Home / 140,077.82-193,307.96-76,416.95

Finding the Fourth Proportional to 140,077.82, 193,307.96 and 76,416.95

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Solution

The fourth proportional to 140,077.82, 193,307.96 and 76,416.95 is: 105,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,077.82 : 193,307.96 = 76,416.95 : x
  2. Step 2: Convert to fraction form
    140,077.82/193,307.96 = 76,416.95/x
  3. Step 3: Cross multiply
    140,077.82x = 193,307.96 × 76,416.95
  4. Step 4: Simplify right side
    140,077.82x = 14,772,004,713.92
  5. Step 5: Solve for x
    x = 14,772,004,713.92/140,077.82
  6. Step 6: Final answer
    x = 105,455.70

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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.