Home / 99,121.23-136,783.64-53,798.24

Finding the Fourth Proportional to 99,121.23, 136,783.64 and 53,798.24

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Solution

The fourth proportional to 99,121.23, 136,783.64 and 53,798.24 is: 74,239.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,121.23 : 136,783.64 = 53,798.24 : x
  2. Step 2: Convert to fraction form
    99,121.23/136,783.64 = 53,798.24/x
  3. Step 3: Cross multiply
    99,121.23x = 136,783.64 × 53,798.24
  4. Step 4: Simplify right side
    99,121.23x = 7,358,719,230.57
  5. Step 5: Solve for x
    x = 7,358,719,230.57/99,121.23
  6. Step 6: Final answer
    x = 74,239.59

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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.