Home / 154,012.48-212,588.48-90,327.04

Finding the Fourth Proportional to 154,012.48, 212,588.48 and 90,327.04

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Solution

The fourth proportional to 154,012.48, 212,588.48 and 90,327.04 is: 124,681.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,012.48 : 212,588.48 = 90,327.04 : x
  2. Step 2: Convert to fraction form
    154,012.48/212,588.48 = 90,327.04/x
  3. Step 3: Cross multiply
    154,012.48x = 212,588.48 × 90,327.04
  4. Step 4: Simplify right side
    154,012.48x = 19,202,488,136.50
  5. Step 5: Solve for x
    x = 19,202,488,136.50/154,012.48
  6. Step 6: Final answer
    x = 124,681.38

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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.