Home / 142,055.82-196,041.74-77,528.59

Finding the Fourth Proportional to 142,055.82, 196,041.74 and 77,528.59

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Solution

The fourth proportional to 142,055.82, 196,041.74 and 77,528.59 is: 106,992.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,055.82 : 196,041.74 = 77,528.59 : x
  2. Step 2: Convert to fraction form
    142,055.82/196,041.74 = 77,528.59/x
  3. Step 3: Cross multiply
    142,055.82x = 196,041.74 × 77,528.59
  4. Step 4: Simplify right side
    142,055.82x = 15,198,839,683.35
  5. Step 5: Solve for x
    x = 15,198,839,683.35/142,055.82
  6. Step 6: Final answer
    x = 106,992.02

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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.