Home / 112,570.56-168,756.48-42,400.80

Finding the Fourth Proportional to 112,570.56, 168,756.48 and 42,400.80

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Solution

The fourth proportional to 112,570.56, 168,756.48 and 42,400.80 is: 63,563.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,570.56 : 168,756.48 = 42,400.80 : x
  2. Step 2: Convert to fraction form
    112,570.56/168,756.48 = 42,400.80/x
  3. Step 3: Cross multiply
    112,570.56x = 168,756.48 × 42,400.80
  4. Step 4: Simplify right side
    112,570.56x = 7,155,409,757.18
  5. Step 5: Solve for x
    x = 7,155,409,757.18/112,570.56
  6. Step 6: Final answer
    x = 63,563.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.