Home / 142,507.08-196,660.98-77,974.92

Finding the Fourth Proportional to 142,507.08, 196,660.98 and 77,974.92

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Solution

The fourth proportional to 142,507.08, 196,660.98 and 77,974.92 is: 107,606.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,507.08 : 196,660.98 = 77,974.92 : x
  2. Step 2: Convert to fraction form
    142,507.08/196,660.98 = 77,974.92/x
  3. Step 3: Cross multiply
    142,507.08x = 196,660.98 × 77,974.92
  4. Step 4: Simplify right side
    142,507.08x = 15,334,624,182.62
  5. Step 5: Solve for x
    x = 15,334,624,182.62/142,507.08
  6. Step 6: Final answer
    x = 107,606.05

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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.