Home / 99,160.12-136,840.21-53,837.21

Finding the Fourth Proportional to 99,160.12, 136,840.21 and 53,837.21

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Solution

The fourth proportional to 99,160.12, 136,840.21 and 53,837.21 is: 74,294.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,160.12 : 136,840.21 = 53,837.21 : x
  2. Step 2: Convert to fraction form
    99,160.12/136,840.21 = 53,837.21/x
  3. Step 3: Cross multiply
    99,160.12x = 136,840.21 × 53,837.21
  4. Step 4: Simplify right side
    99,160.12x = 7,367,095,122.21
  5. Step 5: Solve for x
    x = 7,367,095,122.21/99,160.12
  6. Step 6: Final answer
    x = 74,294.94

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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.