Home / 153,991.24-212,494.08-85,998.76

Finding the Fourth Proportional to 153,991.24, 212,494.08 and 85,998.76

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Solution

The fourth proportional to 153,991.24, 212,494.08 and 85,998.76 is: 118,670.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,991.24 : 212,494.08 = 85,998.76 : x
  2. Step 2: Convert to fraction form
    153,991.24/212,494.08 = 85,998.76/x
  3. Step 3: Cross multiply
    153,991.24x = 212,494.08 × 85,998.76
  4. Step 4: Simplify right side
    153,991.24x = 18,274,227,387.34
  5. Step 5: Solve for x
    x = 18,274,227,387.34/153,991.24
  6. Step 6: Final answer
    x = 118,670.56

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Double scale
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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.