Home / 153,991.23-212,494.07-85,998.77

Finding the Fourth Proportional to 153,991.23, 212,494.07 and 85,998.77

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Solution

The fourth proportional to 153,991.23, 212,494.07 and 85,998.77 is: 118,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,991.23 : 212,494.07 = 85,998.77 : x
  2. Step 2: Convert to fraction form
    153,991.23/212,494.07 = 85,998.77/x
  3. Step 3: Cross multiply
    153,991.23x = 212,494.07 × 85,998.77
  4. Step 4: Simplify right side
    153,991.23x = 18,274,228,652.29
  5. Step 5: Solve for x
    x = 18,274,228,652.29/153,991.23
  6. Step 6: Final answer
    x = 118,670.58

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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.