Home / 140,706.24-194,136.12-90,434.40

Finding the Fourth Proportional to 140,706.24, 194,136.12 and 90,434.40

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Solution

The fourth proportional to 140,706.24, 194,136.12 and 90,434.40 is: 124,774.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,706.24 : 194,136.12 = 90,434.40 : x
  2. Step 2: Convert to fraction form
    140,706.24/194,136.12 = 90,434.40/x
  3. Step 3: Cross multiply
    140,706.24x = 194,136.12 × 90,434.40
  4. Step 4: Simplify right side
    140,706.24x = 17,556,583,530.53
  5. Step 5: Solve for x
    x = 17,556,583,530.53/140,706.24
  6. Step 6: Final answer
    x = 124,774.73

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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.