Home / 105,121.12-145,039.44-59,799.52

Finding the Fourth Proportional to 105,121.12, 145,039.44 and 59,799.52

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Solution

The fourth proportional to 105,121.12, 145,039.44 and 59,799.52 is: 82,507.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,121.12 : 145,039.44 = 59,799.52 : x
  2. Step 2: Convert to fraction form
    105,121.12/145,039.44 = 59,799.52/x
  3. Step 3: Cross multiply
    105,121.12x = 145,039.44 × 59,799.52
  4. Step 4: Simplify right side
    105,121.12x = 8,673,288,893.07
  5. Step 5: Solve for x
    x = 8,673,288,893.07/105,121.12
  6. Step 6: Final answer
    x = 82,507.58

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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.