Home / 108,718.10-163,077.15-73,288.70

Finding the Fourth Proportional to 108,718.10, 163,077.15 and 73,288.70

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Solution

The fourth proportional to 108,718.10, 163,077.15 and 73,288.70 is: 109,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,718.10 : 163,077.15 = 73,288.70 : x
  2. Step 2: Convert to fraction form
    108,718.10/163,077.15 = 73,288.70/x
  3. Step 3: Cross multiply
    108,718.10x = 163,077.15 × 73,288.70
  4. Step 4: Simplify right side
    108,718.10x = 11,951,712,323.21
  5. Step 5: Solve for x
    x = 11,951,712,323.21/108,718.10
  6. Step 6: Final answer
    x = 109,933.05

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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.