Home / 112,338.60-155,027.77-61,350.51

Finding the Fourth Proportional to 112,338.60, 155,027.77 and 61,350.51

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Solution

The fourth proportional to 112,338.60, 155,027.77 and 61,350.51 is: 84,663.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,338.60 : 155,027.77 = 61,350.51 : x
  2. Step 2: Convert to fraction form
    112,338.60/155,027.77 = 61,350.51/x
  3. Step 3: Cross multiply
    112,338.60x = 155,027.77 × 61,350.51
  4. Step 4: Simplify right side
    112,338.60x = 9,511,033,526.74
  5. Step 5: Solve for x
    x = 9,511,033,526.74/112,338.60
  6. Step 6: Final answer
    x = 84,663.99

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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.