Home / 158,282.29-218,428.81-86,661.69

Finding the Fourth Proportional to 158,282.29, 218,428.81 and 86,661.69

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Solution

The fourth proportional to 158,282.29, 218,428.81 and 86,661.69 is: 119,592.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,282.29 : 218,428.81 = 86,661.69 : x
  2. Step 2: Convert to fraction form
    158,282.29/218,428.81 = 86,661.69/x
  3. Step 3: Cross multiply
    158,282.29x = 218,428.81 × 86,661.69
  4. Step 4: Simplify right side
    158,282.29x = 18,929,409,819.29
  5. Step 5: Solve for x
    x = 18,929,409,819.29/158,282.29
  6. Step 6: Final answer
    x = 119,592.72

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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.