Home / 140,082.64-193,313.79-76,420.44

Finding the Fourth Proportional to 140,082.64, 193,313.79 and 76,420.44

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Solution

The fourth proportional to 140,082.64, 193,313.79 and 76,420.44 is: 105,460.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,082.64 : 193,313.79 = 76,420.44 : x
  2. Step 2: Convert to fraction form
    140,082.64/193,313.79 = 76,420.44/x
  3. Step 3: Cross multiply
    140,082.64x = 193,313.79 × 76,420.44
  4. Step 4: Simplify right side
    140,082.64x = 14,773,124,889.87
  5. Step 5: Solve for x
    x = 14,773,124,889.87/140,082.64
  6. Step 6: Final answer
    x = 105,460.07

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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.