Home / 136,269.81-188,010.02-77,323.62

Finding the Fourth Proportional to 136,269.81, 188,010.02 and 77,323.62

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Solution

The fourth proportional to 136,269.81, 188,010.02 and 77,323.62 is: 106,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,269.81 : 188,010.02 = 77,323.62 : x
  2. Step 2: Convert to fraction form
    136,269.81/188,010.02 = 77,323.62/x
  3. Step 3: Cross multiply
    136,269.81x = 188,010.02 × 77,323.62
  4. Step 4: Simplify right side
    136,269.81x = 14,537,614,016.00
  5. Step 5: Solve for x
    x = 14,537,614,016.00/136,269.81
  6. Step 6: Final answer
    x = 106,682.57

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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.