Home / 158,723.43-219,037.86-86,126.01

Finding the Fourth Proportional to 158,723.43, 219,037.86 and 86,126.01

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Solution

The fourth proportional to 158,723.43, 219,037.86 and 86,126.01 is: 118,853.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,723.43 : 219,037.86 = 86,126.01 : x
  2. Step 2: Convert to fraction form
    158,723.43/219,037.86 = 86,126.01/x
  3. Step 3: Cross multiply
    158,723.43x = 219,037.86 × 86,126.01
  4. Step 4: Simplify right side
    158,723.43x = 18,864,856,920.74
  5. Step 5: Solve for x
    x = 18,864,856,920.74/158,723.43
  6. Step 6: Final answer
    x = 118,853.64

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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.