Home / 147,026.20-219,956.10-127,521.40

Finding the Fourth Proportional to 147,026.20, 219,956.10 and 127,521.40

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Solution

The fourth proportional to 147,026.20, 219,956.10 and 127,521.40 is: 190,776.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,026.20 : 219,956.10 = 127,521.40 : x
  2. Step 2: Convert to fraction form
    147,026.20/219,956.10 = 127,521.40/x
  3. Step 3: Cross multiply
    147,026.20x = 219,956.10 × 127,521.40
  4. Step 4: Simplify right side
    147,026.20x = 28,049,109,810.54
  5. Step 5: Solve for x
    x = 28,049,109,810.54/147,026.20
  6. Step 6: Final answer
    x = 190,776.27

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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.