Home / 105,322.19-145,343.67-57,575.39

Finding the Fourth Proportional to 105,322.19, 145,343.67 and 57,575.39

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Solution

The fourth proportional to 105,322.19, 145,343.67 and 57,575.39 is: 79,453.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,322.19 : 145,343.67 = 57,575.39 : x
  2. Step 2: Convert to fraction form
    105,322.19/145,343.67 = 57,575.39/x
  3. Step 3: Cross multiply
    105,322.19x = 145,343.67 × 57,575.39
  4. Step 4: Simplify right side
    105,322.19x = 8,368,217,757.56
  5. Step 5: Solve for x
    x = 8,368,217,757.56/105,322.19
  6. Step 6: Final answer
    x = 79,453.51

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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.