Home / 140,136.36-193,392.45-79,715.76

Finding the Fourth Proportional to 140,136.36, 193,392.45 and 79,715.76

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Solution

The fourth proportional to 140,136.36, 193,392.45 and 79,715.76 is: 110,010.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,136.36 : 193,392.45 = 79,715.76 : x
  2. Step 2: Convert to fraction form
    140,136.36/193,392.45 = 79,715.76/x
  3. Step 3: Cross multiply
    140,136.36x = 193,392.45 × 79,715.76
  4. Step 4: Simplify right side
    140,136.36x = 15,416,426,130.01
  5. Step 5: Solve for x
    x = 15,416,426,130.01/140,136.36
  6. Step 6: Final answer
    x = 110,010.18

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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.