Home / 117,136.68-161,648.91-63,422.34

Finding the Fourth Proportional to 117,136.68, 161,648.91 and 63,422.34

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Solution

The fourth proportional to 117,136.68, 161,648.91 and 63,422.34 is: 87,522.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,136.68 : 161,648.91 = 63,422.34 : x
  2. Step 2: Convert to fraction form
    117,136.68/161,648.91 = 63,422.34/x
  3. Step 3: Cross multiply
    117,136.68x = 161,648.91 × 63,422.34
  4. Step 4: Simplify right side
    117,136.68x = 10,252,152,130.65
  5. Step 5: Solve for x
    x = 10,252,152,130.65/117,136.68
  6. Step 6: Final answer
    x = 87,522.99

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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.