Home / 108,727.20-163,186.80-64,298.40

Finding the Fourth Proportional to 108,727.20, 163,186.80 and 64,298.40

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Solution

The fourth proportional to 108,727.20, 163,186.80 and 64,298.40 is: 96,504.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,727.20 : 163,186.80 = 64,298.40 : x
  2. Step 2: Convert to fraction form
    108,727.20/163,186.80 = 64,298.40/x
  3. Step 3: Cross multiply
    108,727.20x = 163,186.80 × 64,298.40
  4. Step 4: Simplify right side
    108,727.20x = 10,492,650,141.12
  5. Step 5: Solve for x
    x = 10,492,650,141.12/108,727.20
  6. Step 6: Final answer
    x = 96,504.37

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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.