Home / 155,036.45-213,947.57-87,053.96

Finding the Fourth Proportional to 155,036.45, 213,947.57 and 87,053.96

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Solution

The fourth proportional to 155,036.45, 213,947.57 and 87,053.96 is: 120,132.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,036.45 : 213,947.57 = 87,053.96 : x
  2. Step 2: Convert to fraction form
    155,036.45/213,947.57 = 87,053.96/x
  3. Step 3: Cross multiply
    155,036.45x = 213,947.57 × 87,053.96
  4. Step 4: Simplify right side
    155,036.45x = 18,624,983,200.88
  5. Step 5: Solve for x
    x = 18,624,983,200.88/155,036.45
  6. Step 6: Final answer
    x = 120,132.93

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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.