Home / 103,208.86-142,426.37-57,886.93

Finding the Fourth Proportional to 103,208.86, 142,426.37 and 57,886.93

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Solution

The fourth proportional to 103,208.86, 142,426.37 and 57,886.93 is: 79,882.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,208.86 : 142,426.37 = 57,886.93 : x
  2. Step 2: Convert to fraction form
    103,208.86/142,426.37 = 57,886.93/x
  3. Step 3: Cross multiply
    103,208.86x = 142,426.37 × 57,886.93
  4. Step 4: Simplify right side
    103,208.86x = 8,244,625,310.34
  5. Step 5: Solve for x
    x = 8,244,625,310.34/103,208.86
  6. Step 6: Final answer
    x = 79,882.92

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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.