Home / 102,696.15-141,706.66-57,368.53

Finding the Fourth Proportional to 102,696.15, 141,706.66 and 57,368.53

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Solution

The fourth proportional to 102,696.15, 141,706.66 and 57,368.53 is: 79,160.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,696.15 : 141,706.66 = 57,368.53 : x
  2. Step 2: Convert to fraction form
    102,696.15/141,706.66 = 57,368.53/x
  3. Step 3: Cross multiply
    102,696.15x = 141,706.66 × 57,368.53
  4. Step 4: Simplify right side
    102,696.15x = 8,129,502,775.41
  5. Step 5: Solve for x
    x = 8,129,502,775.41/102,696.15
  6. Step 6: Final answer
    x = 79,160.74

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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.