Home / 142,952.65-197,275.60-79,291.51

Finding the Fourth Proportional to 142,952.65, 197,275.60 and 79,291.51

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Solution

The fourth proportional to 142,952.65, 197,275.60 and 79,291.51 is: 109,422.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,952.65 : 197,275.60 = 79,291.51 : x
  2. Step 2: Convert to fraction form
    142,952.65/197,275.60 = 79,291.51/x
  3. Step 3: Cross multiply
    142,952.65x = 197,275.60 × 79,291.51
  4. Step 4: Simplify right side
    142,952.65x = 15,642,279,816.08
  5. Step 5: Solve for x
    x = 15,642,279,816.08/142,952.65
  6. Step 6: Final answer
    x = 109,422.81

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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.