Home / 142,057.04-196,039.79-77,526.77

Finding the Fourth Proportional to 142,057.04, 196,039.79 and 77,526.77

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Solution

The fourth proportional to 142,057.04, 196,039.79 and 77,526.77 is: 106,987.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,057.04 : 196,039.79 = 77,526.77 : x
  2. Step 2: Convert to fraction form
    142,057.04/196,039.79 = 77,526.77/x
  3. Step 3: Cross multiply
    142,057.04x = 196,039.79 × 77,526.77
  4. Step 4: Simplify right side
    142,057.04x = 15,198,332,171.88
  5. Step 5: Solve for x
    x = 15,198,332,171.88/142,057.04
  6. Step 6: Final answer
    x = 106,987.53

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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.