Home / 157,655.13-236,285.86-78,791.91

Finding the Fourth Proportional to 157,655.13, 236,285.86 and 78,791.91

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Solution

The fourth proportional to 157,655.13, 236,285.86 and 78,791.91 is: 118,089.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,655.13 : 236,285.86 = 78,791.91 : x
  2. Step 2: Convert to fraction form
    157,655.13/236,285.86 = 78,791.91/x
  3. Step 3: Cross multiply
    157,655.13x = 236,285.86 × 78,791.91
  4. Step 4: Simplify right side
    157,655.13x = 18,617,414,215.39
  5. Step 5: Solve for x
    x = 18,617,414,215.39/157,655.13
  6. Step 6: Final answer
    x = 118,089.49

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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.