Home / 136,403.24-204,637.08-42,909

Finding the Fourth Proportional to 136,403.24, 204,637.08 and 42,909

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Solution

The fourth proportional to 136,403.24, 204,637.08 and 42,909 is: 64,373.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,403.24 : 204,637.08 = 42,909 : x
  2. Step 2: Convert to fraction form
    136,403.24/204,637.08 = 42,909/x
  3. Step 3: Cross multiply
    136,403.24x = 204,637.08 × 42,909
  4. Step 4: Simplify right side
    136,403.24x = 8,780,772,465.72
  5. Step 5: Solve for x
    x = 8,780,772,465.72/136,403.24
  6. Step 6: Final answer
    x = 64,373.64

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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.