Home / 136,146.02-187,881.71-75,716.66

Finding the Fourth Proportional to 136,146.02, 187,881.71 and 75,716.66

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Solution

The fourth proportional to 136,146.02, 187,881.71 and 75,716.66 is: 104,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,146.02 : 187,881.71 = 75,716.66 : x
  2. Step 2: Convert to fraction form
    136,146.02/187,881.71 = 75,716.66/x
  3. Step 3: Cross multiply
    136,146.02x = 187,881.71 × 75,716.66
  4. Step 4: Simplify right side
    136,146.02x = 14,225,775,647.41
  5. Step 5: Solve for x
    x = 14,225,775,647.41/136,146.02
  6. Step 6: Final answer
    x = 104,489.11

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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.