Home / 143,176.29-197,587.80-85,796.70

Finding the Fourth Proportional to 143,176.29, 197,587.80 and 85,796.70

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Solution

The fourth proportional to 143,176.29, 197,587.80 and 85,796.70 is: 118,402.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,176.29 : 197,587.80 = 85,796.70 : x
  2. Step 2: Convert to fraction form
    143,176.29/197,587.80 = 85,796.70/x
  3. Step 3: Cross multiply
    143,176.29x = 197,587.80 × 85,796.70
  4. Step 4: Simplify right side
    143,176.29x = 16,952,381,200.26
  5. Step 5: Solve for x
    x = 16,952,381,200.26/143,176.29
  6. Step 6: Final answer
    x = 118,402.15

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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.