Home / 157,454.89-236,111.25-45,109.38

Finding the Fourth Proportional to 157,454.89, 236,111.25 and 45,109.38

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Solution

The fourth proportional to 157,454.89, 236,111.25 and 45,109.38 is: 67,643.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,454.89 : 236,111.25 = 45,109.38 : x
  2. Step 2: Convert to fraction form
    157,454.89/236,111.25 = 45,109.38/x
  3. Step 3: Cross multiply
    157,454.89x = 236,111.25 × 45,109.38
  4. Step 4: Simplify right side
    157,454.89x = 10,650,832,489.04
  5. Step 5: Solve for x
    x = 10,650,832,489.04/157,454.89
  6. Step 6: Final answer
    x = 67,643.71

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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.