Home / 103,761.36-143,188.72-63,472.16

Finding the Fourth Proportional to 103,761.36, 143,188.72 and 63,472.16

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Solution

The fourth proportional to 103,761.36, 143,188.72 and 63,472.16 is: 87,590.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,761.36 : 143,188.72 = 63,472.16 : x
  2. Step 2: Convert to fraction form
    103,761.36/143,188.72 = 63,472.16/x
  3. Step 3: Cross multiply
    103,761.36x = 143,188.72 × 63,472.16
  4. Step 4: Simplify right side
    103,761.36x = 9,088,497,346.04
  5. Step 5: Solve for x
    x = 9,088,497,346.04/103,761.36
  6. Step 6: Final answer
    x = 87,590.38

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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.