Home / 145,188.33-200,354.70-81,528.81

Finding the Fourth Proportional to 145,188.33, 200,354.70 and 81,528.81

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Solution

The fourth proportional to 145,188.33, 200,354.70 and 81,528.81 is: 112,506.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,188.33 : 200,354.70 = 81,528.81 : x
  2. Step 2: Convert to fraction form
    145,188.33/200,354.70 = 81,528.81/x
  3. Step 3: Cross multiply
    145,188.33x = 200,354.70 × 81,528.81
  4. Step 4: Simplify right side
    145,188.33x = 16,334,680,268.91
  5. Step 5: Solve for x
    x = 16,334,680,268.91/145,188.33
  6. Step 6: Final answer
    x = 112,506.84

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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.