Home / 143,389.58-197,873.55-79,726.22

Finding the Fourth Proportional to 143,389.58, 197,873.55 and 79,726.22

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Solution

The fourth proportional to 143,389.58, 197,873.55 and 79,726.22 is: 110,019.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,389.58 : 197,873.55 = 79,726.22 : x
  2. Step 2: Convert to fraction form
    143,389.58/197,873.55 = 79,726.22/x
  3. Step 3: Cross multiply
    143,389.58x = 197,873.55 × 79,726.22
  4. Step 4: Simplify right side
    143,389.58x = 15,775,710,179.48
  5. Step 5: Solve for x
    x = 15,775,710,179.48/143,389.58
  6. Step 6: Final answer
    x = 110,019.92

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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.