Home / 155,011.29-213,908.58-87,027.02

Finding the Fourth Proportional to 155,011.29, 213,908.58 and 87,027.02

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Solution

The fourth proportional to 155,011.29, 213,908.58 and 87,027.02 is: 120,093.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,011.29 : 213,908.58 = 87,027.02 : x
  2. Step 2: Convert to fraction form
    155,011.29/213,908.58 = 87,027.02/x
  3. Step 3: Cross multiply
    155,011.29x = 213,908.58 × 87,027.02
  4. Step 4: Simplify right side
    155,011.29x = 18,615,826,002.45
  5. Step 5: Solve for x
    x = 18,615,826,002.45/155,011.29
  6. Step 6: Final answer
    x = 120,093.36

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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.