Home / 155,320.76-214,338.36-87,335.98

Finding the Fourth Proportional to 155,320.76, 214,338.36 and 87,335.98

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Solution

The fourth proportional to 155,320.76, 214,338.36 and 87,335.98 is: 120,521.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,320.76 : 214,338.36 = 87,335.98 : x
  2. Step 2: Convert to fraction form
    155,320.76/214,338.36 = 87,335.98/x
  3. Step 3: Cross multiply
    155,320.76x = 214,338.36 × 87,335.98
  4. Step 4: Simplify right side
    155,320.76x = 18,719,450,722.19
  5. Step 5: Solve for x
    x = 18,719,450,722.19/155,320.76
  6. Step 6: Final answer
    x = 120,521.24

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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.