Home / 136,607.86-188,522.16-76,177.91

Finding the Fourth Proportional to 136,607.86, 188,522.16 and 76,177.91

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Solution

The fourth proportional to 136,607.86, 188,522.16 and 76,177.91 is: 105,127.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,607.86 : 188,522.16 = 76,177.91 : x
  2. Step 2: Convert to fraction form
    136,607.86/188,522.16 = 76,177.91/x
  3. Step 3: Cross multiply
    136,607.86x = 188,522.16 × 76,177.91
  4. Step 4: Simplify right side
    136,607.86x = 14,361,224,137.49
  5. Step 5: Solve for x
    x = 14,361,224,137.49/136,607.86
  6. Step 6: Final answer
    x = 105,127.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.