Home / 78,157.14-107,856.15-46,341.12

Finding the Fourth Proportional to 78,157.14, 107,856.15 and 46,341.12

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Solution

The fourth proportional to 78,157.14, 107,856.15 and 46,341.12 is: 63,950.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,157.14 : 107,856.15 = 46,341.12 : x
  2. Step 2: Convert to fraction form
    78,157.14/107,856.15 = 46,341.12/x
  3. Step 3: Cross multiply
    78,157.14x = 107,856.15 × 46,341.12
  4. Step 4: Simplify right side
    78,157.14x = 4,998,174,789.89
  5. Step 5: Solve for x
    x = 4,998,174,789.89/78,157.14
  6. Step 6: Final answer
    x = 63,950.33

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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.