Home / 153,924.72-212,451.54-90,283.02

Finding the Fourth Proportional to 153,924.72, 212,451.54 and 90,283.02

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Solution

The fourth proportional to 153,924.72, 212,451.54 and 90,283.02 is: 124,611.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,924.72 : 212,451.54 = 90,283.02 : x
  2. Step 2: Convert to fraction form
    153,924.72/212,451.54 = 90,283.02/x
  3. Step 3: Cross multiply
    153,924.72x = 212,451.54 × 90,283.02
  4. Step 4: Simplify right side
    153,924.72x = 19,180,765,121.18
  5. Step 5: Solve for x
    x = 19,180,765,121.18/153,924.72
  6. Step 6: Final answer
    x = 124,611.34

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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.