Home / 279,148.24-418,723.56-89,637.40

Finding the Fourth Proportional to 279,148.24, 418,723.56 and 89,637.40

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Solution

The fourth proportional to 279,148.24, 418,723.56 and 89,637.40 is: 134,456.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,148.24 : 418,723.56 = 89,637.40 : x
  2. Step 2: Convert to fraction form
    279,148.24/418,723.56 = 89,637.40/x
  3. Step 3: Cross multiply
    279,148.24x = 418,723.56 × 89,637.40
  4. Step 4: Simplify right side
    279,148.24x = 37,533,291,237.14
  5. Step 5: Solve for x
    x = 37,533,291,237.14/279,148.24
  6. Step 6: Final answer
    x = 134,456.49

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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.