Home / 448,516.18-672,885-132,973.07

Finding the Fourth Proportional to 448,516.18, 672,885 and 132,973.07

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Solution

The fourth proportional to 448,516.18, 672,885 and 132,973.07 is: 199,492.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,516.18 : 672,885 = 132,973.07 : x
  2. Step 2: Convert to fraction form
    448,516.18/672,885 = 132,973.07/x
  3. Step 3: Cross multiply
    448,516.18x = 672,885 × 132,973.07
  4. Step 4: Simplify right side
    448,516.18x = 89,475,584,206.95
  5. Step 5: Solve for x
    x = 89,475,584,206.95/448,516.18
  6. Step 6: Final answer
    x = 199,492.43

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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.