Home / 136,894.90-188,909.32-76,465.25

Finding the Fourth Proportional to 136,894.90, 188,909.32 and 76,465.25

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Solution

The fourth proportional to 136,894.90, 188,909.32 and 76,465.25 is: 105,518.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,894.90 : 188,909.32 = 76,465.25 : x
  2. Step 2: Convert to fraction form
    136,894.90/188,909.32 = 76,465.25/x
  3. Step 3: Cross multiply
    136,894.90x = 188,909.32 × 76,465.25
  4. Step 4: Simplify right side
    136,894.90x = 14,444,997,998.80
  5. Step 5: Solve for x
    x = 14,444,997,998.80/136,894.90
  6. Step 6: Final answer
    x = 105,518.89

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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.