Home / 159,315.17-219,829.20-91,319.63

Finding the Fourth Proportional to 159,315.17, 219,829.20 and 91,319.63

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Solution

The fourth proportional to 159,315.17, 219,829.20 and 91,319.63 is: 126,006.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,315.17 : 219,829.20 = 91,319.63 : x
  2. Step 2: Convert to fraction form
    159,315.17/219,829.20 = 91,319.63/x
  3. Step 3: Cross multiply
    159,315.17x = 219,829.20 × 91,319.63
  4. Step 4: Simplify right side
    159,315.17x = 20,074,721,207.20
  5. Step 5: Solve for x
    x = 20,074,721,207.20/159,315.17
  6. Step 6: Final answer
    x = 126,006.34

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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.