Home / 136,866.24-188,894.16-76,440.60

Finding the Fourth Proportional to 136,866.24, 188,894.16 and 76,440.60

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Solution

The fourth proportional to 136,866.24, 188,894.16 and 76,440.60 is: 105,498.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,866.24 : 188,894.16 = 76,440.60 : x
  2. Step 2: Convert to fraction form
    136,866.24/188,894.16 = 76,440.60/x
  3. Step 3: Cross multiply
    136,866.24x = 188,894.16 × 76,440.60
  4. Step 4: Simplify right side
    136,866.24x = 14,439,182,926.90
  5. Step 5: Solve for x
    x = 14,439,182,926.90/136,866.24
  6. Step 6: Final answer
    x = 105,498.50

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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.