Home / 136,645.41-205,030.39-70,132.25

Finding the Fourth Proportional to 136,645.41, 205,030.39 and 70,132.25

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Solution

The fourth proportional to 136,645.41, 205,030.39 and 70,132.25 is: 105,230.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,645.41 : 205,030.39 = 70,132.25 : x
  2. Step 2: Convert to fraction form
    136,645.41/205,030.39 = 70,132.25/x
  3. Step 3: Cross multiply
    136,645.41x = 205,030.39 × 70,132.25
  4. Step 4: Simplify right side
    136,645.41x = 14,379,241,543.93
  5. Step 5: Solve for x
    x = 14,379,241,543.93/136,645.41
  6. Step 6: Final answer
    x = 105,230.33

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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.