Home / 117,316.38-161,768.18-87,157.66

Finding the Fourth Proportional to 117,316.38, 161,768.18 and 87,157.66

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Solution

The fourth proportional to 117,316.38, 161,768.18 and 87,157.66 is: 120,182.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,316.38 : 161,768.18 = 87,157.66 : x
  2. Step 2: Convert to fraction form
    117,316.38/161,768.18 = 87,157.66/x
  3. Step 3: Cross multiply
    117,316.38x = 161,768.18 × 87,157.66
  4. Step 4: Simplify right side
    117,316.38x = 14,099,336,031.26
  5. Step 5: Solve for x
    x = 14,099,336,031.26/117,316.38
  6. Step 6: Final answer
    x = 120,182.16

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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.