Home / 132,418.32-182,735.08-71,990.48

Finding the Fourth Proportional to 132,418.32, 182,735.08 and 71,990.48

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Solution

The fourth proportional to 132,418.32, 182,735.08 and 71,990.48 is: 99,345.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,418.32 : 182,735.08 = 71,990.48 : x
  2. Step 2: Convert to fraction form
    132,418.32/182,735.08 = 71,990.48/x
  3. Step 3: Cross multiply
    132,418.32x = 182,735.08 × 71,990.48
  4. Step 4: Simplify right side
    132,418.32x = 13,155,186,122.04
  5. Step 5: Solve for x
    x = 13,155,186,122.04/132,418.32
  6. Step 6: Final answer
    x = 99,345.67

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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.