Home / 155,253.75-214,248.27-87,282.06

Finding the Fourth Proportional to 155,253.75, 214,248.27 and 87,282.06

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Solution

The fourth proportional to 155,253.75, 214,248.27 and 87,282.06 is: 120,448.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,253.75 : 214,248.27 = 87,282.06 : x
  2. Step 2: Convert to fraction form
    155,253.75/214,248.27 = 87,282.06/x
  3. Step 3: Cross multiply
    155,253.75x = 214,248.27 × 87,282.06
  4. Step 4: Simplify right side
    155,253.75x = 18,700,030,357.04
  5. Step 5: Solve for x
    x = 18,700,030,357.04/155,253.75
  6. Step 6: Final answer
    x = 120,448.17

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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.