Home / 147,726.70-221,330.85-121,288.30

Finding the Fourth Proportional to 147,726.70, 221,330.85 and 121,288.30

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Solution

The fourth proportional to 147,726.70, 221,330.85 and 121,288.30 is: 181,719.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,726.70 : 221,330.85 = 121,288.30 : x
  2. Step 2: Convert to fraction form
    147,726.70/221,330.85 = 121,288.30/x
  3. Step 3: Cross multiply
    147,726.70x = 221,330.85 × 121,288.30
  4. Step 4: Simplify right side
    147,726.70x = 26,844,842,534.06
  5. Step 5: Solve for x
    x = 26,844,842,534.06/147,726.70
  6. Step 6: Final answer
    x = 181,719.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.