Home / 99,112.38-136,775.16-53,790.36

Finding the Fourth Proportional to 99,112.38, 136,775.16 and 53,790.36

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Solution

The fourth proportional to 99,112.38, 136,775.16 and 53,790.36 is: 74,230.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,112.38 : 136,775.16 = 53,790.36 : x
  2. Step 2: Convert to fraction form
    99,112.38/136,775.16 = 53,790.36/x
  3. Step 3: Cross multiply
    99,112.38x = 136,775.16 × 53,790.36
  4. Step 4: Simplify right side
    99,112.38x = 7,357,185,095.46
  5. Step 5: Solve for x
    x = 7,357,185,095.46/99,112.38
  6. Step 6: Final answer
    x = 74,230.74

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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.