Home / 158,085.42-218,164.23-86,468.46

Finding the Fourth Proportional to 158,085.42, 218,164.23 and 86,468.46

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Solution

The fourth proportional to 158,085.42, 218,164.23 and 86,468.46 is: 119,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,085.42 : 218,164.23 = 86,468.46 : x
  2. Step 2: Convert to fraction form
    158,085.42/218,164.23 = 86,468.46/x
  3. Step 3: Cross multiply
    158,085.42x = 218,164.23 × 86,468.46
  4. Step 4: Simplify right side
    158,085.42x = 18,864,324,995.19
  5. Step 5: Solve for x
    x = 18,864,324,995.19/158,085.42
  6. Step 6: Final answer
    x = 119,329.95

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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.