Home / 158,204.58-218,279.09-90,196.76

Finding the Fourth Proportional to 158,204.58, 218,279.09 and 90,196.76

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Solution

The fourth proportional to 158,204.58, 218,279.09 and 90,196.76 is: 124,446.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,204.58 : 218,279.09 = 90,196.76 : x
  2. Step 2: Convert to fraction form
    158,204.58/218,279.09 = 90,196.76/x
  3. Step 3: Cross multiply
    158,204.58x = 218,279.09 × 90,196.76
  4. Step 4: Simplify right side
    158,204.58x = 19,688,065,151.37
  5. Step 5: Solve for x
    x = 19,688,065,151.37/158,204.58
  6. Step 6: Final answer
    x = 124,446.87

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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.