Home / 136,645.66-205,030.77-70,132.50

Finding the Fourth Proportional to 136,645.66, 205,030.77 and 70,132.50

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Solution

The fourth proportional to 136,645.66, 205,030.77 and 70,132.50 is: 105,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,645.66 : 205,030.77 = 70,132.50 : x
  2. Step 2: Convert to fraction form
    136,645.66/205,030.77 = 70,132.50/x
  3. Step 3: Cross multiply
    136,645.66x = 205,030.77 × 70,132.50
  4. Step 4: Simplify right side
    136,645.66x = 14,379,320,477.03
  5. Step 5: Solve for x
    x = 14,379,320,477.03/136,645.66
  6. Step 6: Final answer
    x = 105,230.71

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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.