Home / 158,721.52-219,037.35-87,106.18

Finding the Fourth Proportional to 158,721.52, 219,037.35 and 87,106.18

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Solution

The fourth proportional to 158,721.52, 219,037.35 and 87,106.18 is: 120,207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,721.52 : 219,037.35 = 87,106.18 : x
  2. Step 2: Convert to fraction form
    158,721.52/219,037.35 = 87,106.18/x
  3. Step 3: Cross multiply
    158,721.52x = 219,037.35 × 87,106.18
  4. Step 4: Simplify right side
    158,721.52x = 19,079,506,835.82
  5. Step 5: Solve for x
    x = 19,079,506,835.82/158,721.52
  6. Step 6: Final answer
    x = 120,207.44

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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.