Home / 102,679.65-141,696.81-57,362.18

Finding the Fourth Proportional to 102,679.65, 141,696.81 and 57,362.18

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Solution

The fourth proportional to 102,679.65, 141,696.81 and 57,362.18 is: 79,159.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,679.65 : 141,696.81 = 57,362.18 : x
  2. Step 2: Convert to fraction form
    102,679.65/141,696.81 = 57,362.18/x
  3. Step 3: Cross multiply
    102,679.65x = 141,696.81 × 57,362.18
  4. Step 4: Simplify right side
    102,679.65x = 8,128,037,212.16
  5. Step 5: Solve for x
    x = 8,128,037,212.16/102,679.65
  6. Step 6: Final answer
    x = 79,159.18

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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.