Home / 86,142.36-129,060.18-73,533.72

Finding the Fourth Proportional to 86,142.36, 129,060.18 and 73,533.72

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Solution

The fourth proportional to 86,142.36, 129,060.18 and 73,533.72 is: 110,169.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,142.36 : 129,060.18 = 73,533.72 : x
  2. Step 2: Convert to fraction form
    86,142.36/129,060.18 = 73,533.72/x
  3. Step 3: Cross multiply
    86,142.36x = 129,060.18 × 73,533.72
  4. Step 4: Simplify right side
    86,142.36x = 9,490,275,139.27
  5. Step 5: Solve for x
    x = 9,490,275,139.27/86,142.36
  6. Step 6: Final answer
    x = 110,169.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.