Home / 117,187.42-161,718.90-64,799.86

Finding the Fourth Proportional to 117,187.42, 161,718.90 and 64,799.86

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Solution

The fourth proportional to 117,187.42, 161,718.90 and 64,799.86 is: 89,423.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,187.42 : 161,718.90 = 64,799.86 : x
  2. Step 2: Convert to fraction form
    117,187.42/161,718.90 = 64,799.86/x
  3. Step 3: Cross multiply
    117,187.42x = 161,718.90 × 64,799.86
  4. Step 4: Simplify right side
    117,187.42x = 10,479,362,079.35
  5. Step 5: Solve for x
    x = 10,479,362,079.35/117,187.42
  6. Step 6: Final answer
    x = 89,423.95

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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.