Home / 199,741.08-299,612.76-66,620.95

Finding the Fourth Proportional to 199,741.08, 299,612.76 and 66,620.95

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Solution

The fourth proportional to 199,741.08, 299,612.76 and 66,620.95 is: 99,931.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,741.08 : 299,612.76 = 66,620.95 : x
  2. Step 2: Convert to fraction form
    199,741.08/299,612.76 = 66,620.95/x
  3. Step 3: Cross multiply
    199,741.08x = 299,612.76 × 66,620.95
  4. Step 4: Simplify right side
    199,741.08x = 19,960,486,703.32
  5. Step 5: Solve for x
    x = 19,960,486,703.32/199,741.08
  6. Step 6: Final answer
    x = 99,931.81

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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.