Home / 115,111.56-158,854.23-66,722.84

Finding the Fourth Proportional to 115,111.56, 158,854.23 and 66,722.84

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Solution

The fourth proportional to 115,111.56, 158,854.23 and 66,722.84 is: 92,077.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,111.56 : 158,854.23 = 66,722.84 : x
  2. Step 2: Convert to fraction form
    115,111.56/158,854.23 = 66,722.84/x
  3. Step 3: Cross multiply
    115,111.56x = 158,854.23 × 66,722.84
  4. Step 4: Simplify right side
    115,111.56x = 10,599,204,577.34
  5. Step 5: Solve for x
    x = 10,599,204,577.34/115,111.56
  6. Step 6: Final answer
    x = 92,077.67

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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.