Home / 158,037.12-218,091.44-86,417.44

Finding the Fourth Proportional to 158,037.12, 218,091.44 and 86,417.44

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Solution

The fourth proportional to 158,037.12, 218,091.44 and 86,417.44 is: 119,256.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,037.12 : 218,091.44 = 86,417.44 : x
  2. Step 2: Convert to fraction form
    158,037.12/218,091.44 = 86,417.44/x
  3. Step 3: Cross multiply
    158,037.12x = 218,091.44 × 86,417.44
  4. Step 4: Simplify right side
    158,037.12x = 18,846,903,930.71
  5. Step 5: Solve for x
    x = 18,846,903,930.71/158,037.12
  6. Step 6: Final answer
    x = 119,256.18

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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.