Home / 86,136.08-129,189.50-23,806.76

Finding the Fourth Proportional to 86,136.08, 129,189.50 and 23,806.76

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Solution

The fourth proportional to 86,136.08, 129,189.50 and 23,806.76 is: 35,706.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,136.08 : 129,189.50 = 23,806.76 : x
  2. Step 2: Convert to fraction form
    86,136.08/129,189.50 = 23,806.76/x
  3. Step 3: Cross multiply
    86,136.08x = 129,189.50 × 23,806.76
  4. Step 4: Simplify right side
    86,136.08x = 3,075,583,421.02
  5. Step 5: Solve for x
    x = 3,075,583,421.02/86,136.08
  6. Step 6: Final answer
    x = 35,706.10

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1.5x scale

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.