Home / 105,322.08-145,344.60-57,575.82

Finding the Fourth Proportional to 105,322.08, 145,344.60 and 57,575.82

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Solution

The fourth proportional to 105,322.08, 145,344.60 and 57,575.82 is: 79,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,322.08 : 145,344.60 = 57,575.82 : x
  2. Step 2: Convert to fraction form
    105,322.08/145,344.60 = 57,575.82/x
  3. Step 3: Cross multiply
    105,322.08x = 145,344.60 × 57,575.82
  4. Step 4: Simplify right side
    105,322.08x = 8,368,334,527.57
  5. Step 5: Solve for x
    x = 8,368,334,527.57/105,322.08
  6. Step 6: Final answer
    x = 79,454.70

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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.