Home / 131,855.58-181,961.58-71,426.23

Finding the Fourth Proportional to 131,855.58, 181,961.58 and 71,426.23

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Solution

The fourth proportional to 131,855.58, 181,961.58 and 71,426.23 is: 98,568.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,855.58 : 181,961.58 = 71,426.23 : x
  2. Step 2: Convert to fraction form
    131,855.58/181,961.58 = 71,426.23/x
  3. Step 3: Cross multiply
    131,855.58x = 181,961.58 × 71,426.23
  4. Step 4: Simplify right side
    131,855.58x = 12,996,829,664.24
  5. Step 5: Solve for x
    x = 12,996,829,664.24/131,855.58
  6. Step 6: Final answer
    x = 98,568.67

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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.