Home / 99,145.37-136,820.73-53,823.38

Finding the Fourth Proportional to 99,145.37, 136,820.73 and 53,823.38

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Solution

The fourth proportional to 99,145.37, 136,820.73 and 53,823.38 is: 74,276.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,145.37 : 136,820.73 = 53,823.38 : x
  2. Step 2: Convert to fraction form
    99,145.37/136,820.73 = 53,823.38/x
  3. Step 3: Cross multiply
    99,145.37x = 136,820.73 × 53,823.38
  4. Step 4: Simplify right side
    99,145.37x = 7,364,153,458.56
  5. Step 5: Solve for x
    x = 7,364,153,458.56/99,145.37
  6. Step 6: Final answer
    x = 74,276.33

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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.