Home / 102,935.90-142,019.17-57,606.68

Finding the Fourth Proportional to 102,935.90, 142,019.17 and 57,606.68

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Solution

The fourth proportional to 102,935.90, 142,019.17 and 57,606.68 is: 79,479.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,935.90 : 142,019.17 = 57,606.68 : x
  2. Step 2: Convert to fraction form
    102,935.90/142,019.17 = 57,606.68/x
  3. Step 3: Cross multiply
    102,935.90x = 142,019.17 × 57,606.68
  4. Step 4: Simplify right side
    102,935.90x = 8,181,252,880.06
  5. Step 5: Solve for x
    x = 8,181,252,880.06/102,935.90
  6. Step 6: Final answer
    x = 79,479.10

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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.