Home / 103,956.16-143,457.60-63,663.52

Finding the Fourth Proportional to 103,956.16, 143,457.60 and 63,663.52

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Solution

The fourth proportional to 103,956.16, 143,457.60 and 63,663.52 is: 87,854.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,956.16 : 143,457.60 = 63,663.52 : x
  2. Step 2: Convert to fraction form
    103,956.16/143,457.60 = 63,663.52/x
  3. Step 3: Cross multiply
    103,956.16x = 143,457.60 × 63,663.52
  4. Step 4: Simplify right side
    103,956.16x = 9,133,015,786.75
  5. Step 5: Solve for x
    x = 9,133,015,786.75/103,956.16
  6. Step 6: Final answer
    x = 87,854.49

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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.