Home / 142,551.71-196,727.53-78,889.52

Finding the Fourth Proportional to 142,551.71, 196,727.53 and 78,889.52

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Solution

The fourth proportional to 142,551.71, 196,727.53 and 78,889.52 is: 108,870.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,551.71 : 196,727.53 = 78,889.52 : x
  2. Step 2: Convert to fraction form
    142,551.71/196,727.53 = 78,889.52/x
  3. Step 3: Cross multiply
    142,551.71x = 196,727.53 × 78,889.52
  4. Step 4: Simplify right side
    142,551.71x = 15,519,740,707.08
  5. Step 5: Solve for x
    x = 15,519,740,707.08/142,551.71
  6. Step 6: Final answer
    x = 108,870.96

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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.