Home / 100,938.80-151,426.56-41,742.32

Finding the Fourth Proportional to 100,938.80, 151,426.56 and 41,742.32

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Solution

The fourth proportional to 100,938.80, 151,426.56 and 41,742.32 is: 62,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,938.80 : 151,426.56 = 41,742.32 : x
  2. Step 2: Convert to fraction form
    100,938.80/151,426.56 = 41,742.32/x
  3. Step 3: Cross multiply
    100,938.80x = 151,426.56 × 41,742.32
  4. Step 4: Simplify right side
    100,938.80x = 6,320,895,924.02
  5. Step 5: Solve for x
    x = 6,320,895,924.02/100,938.80
  6. Step 6: Final answer
    x = 62,621.07

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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.