Home / 109,530.21-151,152.24-61,136.76

Finding the Fourth Proportional to 109,530.21, 151,152.24 and 61,136.76

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Solution

The fourth proportional to 109,530.21, 151,152.24 and 61,136.76 is: 84,369.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,530.21 : 151,152.24 = 61,136.76 : x
  2. Step 2: Convert to fraction form
    109,530.21/151,152.24 = 61,136.76/x
  3. Step 3: Cross multiply
    109,530.21x = 151,152.24 × 61,136.76
  4. Step 4: Simplify right side
    109,530.21x = 9,240,958,220.34
  5. Step 5: Solve for x
    x = 9,240,958,220.34/109,530.21
  6. Step 6: Final answer
    x = 84,369.04

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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.