Home / 102,706.65-141,730.02-57,375.63

Finding the Fourth Proportional to 102,706.65, 141,730.02 and 57,375.63

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Solution

The fourth proportional to 102,706.65, 141,730.02 and 57,375.63 is: 79,175.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,706.65 : 141,730.02 = 57,375.63 : x
  2. Step 2: Convert to fraction form
    102,706.65/141,730.02 = 57,375.63/x
  3. Step 3: Cross multiply
    102,706.65x = 141,730.02 × 57,375.63
  4. Step 4: Simplify right side
    102,706.65x = 8,131,849,187.41
  5. Step 5: Solve for x
    x = 8,131,849,187.41/102,706.65
  6. Step 6: Final answer
    x = 79,175.49

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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.