Home / 99,161.12-136,841.59-53,838.21

Finding the Fourth Proportional to 99,161.12, 136,841.59 and 53,838.21

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Solution

The fourth proportional to 99,161.12, 136,841.59 and 53,838.21 is: 74,296.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,161.12 : 136,841.59 = 53,838.21 : x
  2. Step 2: Convert to fraction form
    99,161.12/136,841.59 = 53,838.21/x
  3. Step 3: Cross multiply
    99,161.12x = 136,841.59 × 53,838.21
  4. Step 4: Simplify right side
    99,161.12x = 7,367,306,259.15
  5. Step 5: Solve for x
    x = 7,367,306,259.15/99,161.12
  6. Step 6: Final answer
    x = 74,296.32

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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.