Home / 158,723.34-219,041.82-87,107.92

Finding the Fourth Proportional to 158,723.34, 219,041.82 and 87,107.92

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Solution

The fourth proportional to 158,723.34, 219,041.82 and 87,107.92 is: 120,210.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,723.34 : 219,041.82 = 87,107.92 : x
  2. Step 2: Convert to fraction form
    158,723.34/219,041.82 = 87,107.92/x
  3. Step 3: Cross multiply
    158,723.34x = 219,041.82 × 87,107.92
  4. Step 4: Simplify right side
    158,723.34x = 19,080,277,333.21
  5. Step 5: Solve for x
    x = 19,080,277,333.21/158,723.34
  6. Step 6: Final answer
    x = 120,210.91

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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.