Home / 153,896.42-212,387.76-85,926.75

Finding the Fourth Proportional to 153,896.42, 212,387.76 and 85,926.75

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Solution

The fourth proportional to 153,896.42, 212,387.76 and 85,926.75 is: 118,584.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,896.42 : 212,387.76 = 85,926.75 : x
  2. Step 2: Convert to fraction form
    153,896.42/212,387.76 = 85,926.75/x
  3. Step 3: Cross multiply
    153,896.42x = 212,387.76 × 85,926.75
  4. Step 4: Simplify right side
    153,896.42x = 18,249,789,526.95
  5. Step 5: Solve for x
    x = 18,249,789,526.95/153,896.42
  6. Step 6: Final answer
    x = 118,584.89

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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.