Home / 142,507.96-196,663.85-78,846.82

Finding the Fourth Proportional to 142,507.96, 196,663.85 and 78,846.82

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Solution

The fourth proportional to 142,507.96, 196,663.85 and 78,846.82 is: 108,810.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,507.96 : 196,663.85 = 78,846.82 : x
  2. Step 2: Convert to fraction form
    142,507.96/196,663.85 = 78,846.82/x
  3. Step 3: Cross multiply
    142,507.96x = 196,663.85 × 78,846.82
  4. Step 4: Simplify right side
    142,507.96x = 15,506,318,591.24
  5. Step 5: Solve for x
    x = 15,506,318,591.24/142,507.96
  6. Step 6: Final answer
    x = 108,810.19

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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.