Home / 145,824.30-201,178.35-89,268.48

Finding the Fourth Proportional to 145,824.30, 201,178.35 and 89,268.48

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Solution

The fourth proportional to 145,824.30, 201,178.35 and 89,268.48 is: 123,154.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,824.30 : 201,178.35 = 89,268.48 : x
  2. Step 2: Convert to fraction form
    145,824.30/201,178.35 = 89,268.48/x
  3. Step 3: Cross multiply
    145,824.30x = 201,178.35 × 89,268.48
  4. Step 4: Simplify right side
    145,824.30x = 17,958,885,513.41
  5. Step 5: Solve for x
    x = 17,958,885,513.41/145,824.30
  6. Step 6: Final answer
    x = 123,154.27

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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.