Home / 131,510.55-197,136.63-51,489.84

Finding the Fourth Proportional to 131,510.55, 197,136.63 and 51,489.84

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Solution

The fourth proportional to 131,510.55, 197,136.63 and 51,489.84 is: 77,184.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,510.55 : 197,136.63 = 51,489.84 : x
  2. Step 2: Convert to fraction form
    131,510.55/197,136.63 = 51,489.84/x
  3. Step 3: Cross multiply
    131,510.55x = 197,136.63 × 51,489.84
  4. Step 4: Simplify right side
    131,510.55x = 10,150,533,536.84
  5. Step 5: Solve for x
    x = 10,150,533,536.84/131,510.55
  6. Step 6: Final answer
    x = 77,184.18

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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.