Home / 157,685.48-236,608.86-74,557.16

Finding the Fourth Proportional to 157,685.48, 236,608.86 and 74,557.16

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Solution

The fourth proportional to 157,685.48, 236,608.86 and 74,557.16 is: 111,873.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,685.48 : 236,608.86 = 74,557.16 : x
  2. Step 2: Convert to fraction form
    157,685.48/236,608.86 = 74,557.16/x
  3. Step 3: Cross multiply
    157,685.48x = 236,608.86 × 74,557.16
  4. Step 4: Simplify right side
    157,685.48x = 17,640,884,632.44
  5. Step 5: Solve for x
    x = 17,640,884,632.44/157,685.48
  6. Step 6: Final answer
    x = 111,873.87

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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.