Home / 112,538.81-155,306.27-61,556.33

Finding the Fourth Proportional to 112,538.81, 155,306.27 and 61,556.33

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Solution

The fourth proportional to 112,538.81, 155,306.27 and 61,556.33 is: 84,949.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,538.81 : 155,306.27 = 61,556.33 : x
  2. Step 2: Convert to fraction form
    112,538.81/155,306.27 = 61,556.33/x
  3. Step 3: Cross multiply
    112,538.81x = 155,306.27 × 61,556.33
  4. Step 4: Simplify right side
    112,538.81x = 9,560,084,007.19
  5. Step 5: Solve for x
    x = 9,560,084,007.19/112,538.81
  6. Step 6: Final answer
    x = 84,949.22

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1.5x scale

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.