Home / 153,928.10-212,383.26-90,253.59

Finding the Fourth Proportional to 153,928.10, 212,383.26 and 90,253.59

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Solution

The fourth proportional to 153,928.10, 212,383.26 and 90,253.59 is: 124,527.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,928.10 : 212,383.26 = 90,253.59 : x
  2. Step 2: Convert to fraction form
    153,928.10/212,383.26 = 90,253.59/x
  3. Step 3: Cross multiply
    153,928.10x = 212,383.26 × 90,253.59
  4. Step 4: Simplify right side
    153,928.10x = 19,168,351,670.90
  5. Step 5: Solve for x
    x = 19,168,351,670.90/153,928.10
  6. Step 6: Final answer
    x = 124,527.96

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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.