Home / 136,496.34-188,365.14-76,065.66

Finding the Fourth Proportional to 136,496.34, 188,365.14 and 76,065.66

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Solution

The fourth proportional to 136,496.34, 188,365.14 and 76,065.66 is: 104,970.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,496.34 : 188,365.14 = 76,065.66 : x
  2. Step 2: Convert to fraction form
    136,496.34/188,365.14 = 76,065.66/x
  3. Step 3: Cross multiply
    136,496.34x = 188,365.14 × 76,065.66
  4. Step 4: Simplify right side
    136,496.34x = 14,328,118,695.09
  5. Step 5: Solve for x
    x = 14,328,118,695.09/136,496.34
  6. Step 6: Final answer
    x = 104,970.72

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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.