Home / 136,171.47-187,913.91-75,740.81

Finding the Fourth Proportional to 136,171.47, 187,913.91 and 75,740.81

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Solution

The fourth proportional to 136,171.47, 187,913.91 and 75,740.81 is: 104,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,171.47 : 187,913.91 = 75,740.81 : x
  2. Step 2: Convert to fraction form
    136,171.47/187,913.91 = 75,740.81/x
  3. Step 3: Cross multiply
    136,171.47x = 187,913.91 × 75,740.81
  4. Step 4: Simplify right side
    136,171.47x = 14,232,750,814.10
  5. Step 5: Solve for x
    x = 14,232,750,814.10/136,171.47
  6. Step 6: Final answer
    x = 104,520.80

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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.