Home / 205,320.62-307,927.46-86,931.02

Finding the Fourth Proportional to 205,320.62, 307,927.46 and 86,931.02

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Solution

The fourth proportional to 205,320.62, 307,927.46 and 86,931.02 is: 130,373.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,320.62 : 307,927.46 = 86,931.02 : x
  2. Step 2: Convert to fraction form
    205,320.62/307,927.46 = 86,931.02/x
  3. Step 3: Cross multiply
    205,320.62x = 307,927.46 × 86,931.02
  4. Step 4: Simplify right side
    205,320.62x = 26,768,446,209.52
  5. Step 5: Solve for x
    x = 26,768,446,209.52/205,320.62
  6. Step 6: Final answer
    x = 130,373.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.