Home / 201,401.39-302,184.18-129,434.91

Finding the Fourth Proportional to 201,401.39, 302,184.18 and 129,434.91

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Solution

The fourth proportional to 201,401.39, 302,184.18 and 129,434.91 is: 194,205.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,401.39 : 302,184.18 = 129,434.91 : x
  2. Step 2: Convert to fraction form
    201,401.39/302,184.18 = 129,434.91/x
  3. Step 3: Cross multiply
    201,401.39x = 302,184.18 × 129,434.91
  4. Step 4: Simplify right side
    201,401.39x = 39,113,182,141.72
  5. Step 5: Solve for x
    x = 39,113,182,141.72/201,401.39
  6. Step 6: Final answer
    x = 194,205.13

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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.