Home / 199,678.16-299,434.44-81,269.12

Finding the Fourth Proportional to 199,678.16, 299,434.44 and 81,269.12

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Solution

The fourth proportional to 199,678.16, 299,434.44 and 81,269.12 is: 121,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,678.16 : 299,434.44 = 81,269.12 : x
  2. Step 2: Convert to fraction form
    199,678.16/299,434.44 = 81,269.12/x
  3. Step 3: Cross multiply
    199,678.16x = 299,434.44 × 81,269.12
  4. Step 4: Simplify right side
    199,678.16x = 24,334,773,436.49
  5. Step 5: Solve for x
    x = 24,334,773,436.49/199,678.16
  6. Step 6: Final answer
    x = 121,869.98

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1.5x scale

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.