Home / 90,534.51-125,063.60-86,105.84

Finding the Fourth Proportional to 90,534.51, 125,063.60 and 86,105.84

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Solution

The fourth proportional to 90,534.51, 125,063.60 and 86,105.84 is: 118,945.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,534.51 : 125,063.60 = 86,105.84 : x
  2. Step 2: Convert to fraction form
    90,534.51/125,063.60 = 86,105.84/x
  3. Step 3: Cross multiply
    90,534.51x = 125,063.60 × 86,105.84
  4. Step 4: Simplify right side
    90,534.51x = 10,768,705,275.58
  5. Step 5: Solve for x
    x = 10,768,705,275.58/90,534.51
  6. Step 6: Final answer
    x = 118,945.86

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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.