Home / 102,693.71-141,703.30-57,366.09

Finding the Fourth Proportional to 102,693.71, 141,703.30 and 57,366.09

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Solution

The fourth proportional to 102,693.71, 141,703.30 and 57,366.09 is: 79,157.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,693.71 : 141,703.30 = 57,366.09 : x
  2. Step 2: Convert to fraction form
    102,693.71/141,703.30 = 57,366.09/x
  3. Step 3: Cross multiply
    102,693.71x = 141,703.30 × 57,366.09
  4. Step 4: Simplify right side
    102,693.71x = 8,128,964,332.80
  5. Step 5: Solve for x
    x = 8,128,964,332.80/102,693.71
  6. Step 6: Final answer
    x = 79,157.37

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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.