Home / 112,039.74-154,632.78-71,751.42

Finding the Fourth Proportional to 112,039.74, 154,632.78 and 71,751.42

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Solution

The fourth proportional to 112,039.74, 154,632.78 and 71,751.42 is: 99,028.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,039.74 : 154,632.78 = 71,751.42 : x
  2. Step 2: Convert to fraction form
    112,039.74/154,632.78 = 71,751.42/x
  3. Step 3: Cross multiply
    112,039.74x = 154,632.78 × 71,751.42
  4. Step 4: Simplify right side
    112,039.74x = 11,095,121,543.55
  5. Step 5: Solve for x
    x = 11,095,121,543.55/112,039.74
  6. Step 6: Final answer
    x = 99,028.45

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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.