Home / 145,167.16-200,330.84-81,505.11

Finding the Fourth Proportional to 145,167.16, 200,330.84 and 81,505.11

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Solution

The fourth proportional to 145,167.16, 200,330.84 and 81,505.11 is: 112,477.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,167.16 : 200,330.84 = 81,505.11 : x
  2. Step 2: Convert to fraction form
    145,167.16/200,330.84 = 81,505.11/x
  3. Step 3: Cross multiply
    145,167.16x = 200,330.84 × 81,505.11
  4. Step 4: Simplify right side
    145,167.16x = 16,327,987,150.59
  5. Step 5: Solve for x
    x = 16,327,987,150.59/145,167.16
  6. Step 6: Final answer
    x = 112,477.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.