Home / 239,998.04-359,719.89-90,142.67

Finding the Fourth Proportional to 239,998.04, 359,719.89 and 90,142.67

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Solution

The fourth proportional to 239,998.04, 359,719.89 and 90,142.67 is: 135,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,998.04 : 359,719.89 = 90,142.67 : x
  2. Step 2: Convert to fraction form
    239,998.04/359,719.89 = 90,142.67/x
  3. Step 3: Cross multiply
    239,998.04x = 359,719.89 × 90,142.67
  4. Step 4: Simplify right side
    239,998.04x = 32,426,111,897.97
  5. Step 5: Solve for x
    x = 32,426,111,897.97/239,998.04
  6. Step 6: Final answer
    x = 135,109.90

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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.