Home / 153,928.29-212,419.01-85,946.42

Finding the Fourth Proportional to 153,928.29, 212,419.01 and 85,946.42

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Solution

The fourth proportional to 153,928.29, 212,419.01 and 85,946.42 is: 118,604.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,928.29 : 212,419.01 = 85,946.42 : x
  2. Step 2: Convert to fraction form
    153,928.29/212,419.01 = 85,946.42/x
  3. Step 3: Cross multiply
    153,928.29x = 212,419.01 × 85,946.42
  4. Step 4: Simplify right side
    153,928.29x = 18,256,653,449.44
  5. Step 5: Solve for x
    x = 18,256,653,449.44/153,928.29
  6. Step 6: Final answer
    x = 118,604.93

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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.