Home / 115,457.40-173,186.10-109,042.20

Finding the Fourth Proportional to 115,457.40, 173,186.10 and 109,042.20

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Solution

The fourth proportional to 115,457.40, 173,186.10 and 109,042.20 is: 163,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,457.40 : 173,186.10 = 109,042.20 : x
  2. Step 2: Convert to fraction form
    115,457.40/173,186.10 = 109,042.20/x
  3. Step 3: Cross multiply
    115,457.40x = 173,186.10 × 109,042.20
  4. Step 4: Simplify right side
    115,457.40x = 18,884,593,353.42
  5. Step 5: Solve for x
    x = 18,884,593,353.42/115,457.40
  6. Step 6: Final answer
    x = 163,563.30

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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.