Home / 157,608.42-236,538.61-81,728.52

Finding the Fourth Proportional to 157,608.42, 236,538.61 and 81,728.52

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Solution

The fourth proportional to 157,608.42, 236,538.61 and 81,728.52 is: 122,658.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,608.42 : 236,538.61 = 81,728.52 : x
  2. Step 2: Convert to fraction form
    157,608.42/236,538.61 = 81,728.52/x
  3. Step 3: Cross multiply
    157,608.42x = 236,538.61 × 81,728.52
  4. Step 4: Simplify right side
    157,608.42x = 19,331,950,518.16
  5. Step 5: Solve for x
    x = 19,331,950,518.16/157,608.42
  6. Step 6: Final answer
    x = 122,658.11

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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.