Home / 105,174.54-145,140.30-57,427.92

Finding the Fourth Proportional to 105,174.54, 145,140.30 and 57,427.92

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Solution

The fourth proportional to 105,174.54, 145,140.30 and 57,427.92 is: 79,250.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,174.54 : 145,140.30 = 57,427.92 : x
  2. Step 2: Convert to fraction form
    105,174.54/145,140.30 = 57,427.92/x
  3. Step 3: Cross multiply
    105,174.54x = 145,140.30 × 57,427.92
  4. Step 4: Simplify right side
    105,174.54x = 8,335,105,537.18
  5. Step 5: Solve for x
    x = 8,335,105,537.18/105,174.54
  6. Step 6: Final answer
    x = 79,250.22

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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.