Home / 147,538.70-221,394.45-54,053.90

Finding the Fourth Proportional to 147,538.70, 221,394.45 and 54,053.90

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Solution

The fourth proportional to 147,538.70, 221,394.45 and 54,053.90 is: 81,112.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,538.70 : 221,394.45 = 54,053.90 : x
  2. Step 2: Convert to fraction form
    147,538.70/221,394.45 = 54,053.90/x
  3. Step 3: Cross multiply
    147,538.70x = 221,394.45 × 54,053.90
  4. Step 4: Simplify right side
    147,538.70x = 11,967,233,460.86
  5. Step 5: Solve for x
    x = 11,967,233,460.86/147,538.70
  6. Step 6: Final answer
    x = 81,112.50

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1.5x scale

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.