Home / 105,394.24-145,469.70-88,371.28

Finding the Fourth Proportional to 105,394.24, 145,469.70 and 88,371.28

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Solution

The fourth proportional to 105,394.24, 145,469.70 and 88,371.28 is: 121,973.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,394.24 : 145,469.70 = 88,371.28 : x
  2. Step 2: Convert to fraction form
    105,394.24/145,469.70 = 88,371.28/x
  3. Step 3: Cross multiply
    105,394.24x = 145,469.70 × 88,371.28
  4. Step 4: Simplify right side
    105,394.24x = 12,855,343,590.22
  5. Step 5: Solve for x
    x = 12,855,343,590.22/105,394.24
  6. Step 6: Final answer
    x = 121,973.87

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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.