Home / 105,322.09-145,344.56-57,575.46

Finding the Fourth Proportional to 105,322.09, 145,344.56 and 57,575.46

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Solution

The fourth proportional to 105,322.09, 145,344.56 and 57,575.46 is: 79,454.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,322.09 : 145,344.56 = 57,575.46 : x
  2. Step 2: Convert to fraction form
    105,322.09/145,344.56 = 57,575.46/x
  3. Step 3: Cross multiply
    105,322.09x = 145,344.56 × 57,575.46
  4. Step 4: Simplify right side
    105,322.09x = 8,368,279,900.50
  5. Step 5: Solve for x
    x = 8,368,279,900.50/105,322.09
  6. Step 6: Final answer
    x = 79,454.18

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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.