Home / 104,020.40-143,565.32-63,756.56

Finding the Fourth Proportional to 104,020.40, 143,565.32 and 63,756.56

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Solution

The fourth proportional to 104,020.40, 143,565.32 and 63,756.56 is: 87,994.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,020.40 : 143,565.32 = 63,756.56 : x
  2. Step 2: Convert to fraction form
    104,020.40/143,565.32 = 63,756.56/x
  3. Step 3: Cross multiply
    104,020.40x = 143,565.32 × 63,756.56
  4. Step 4: Simplify right side
    104,020.40x = 9,153,230,938.50
  5. Step 5: Solve for x
    x = 9,153,230,938.50/104,020.40
  6. Step 6: Final answer
    x = 87,994.58

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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.