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Finding the Fourth Proportional to 147,160.38, 203,120.38 and 90,619.14

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Solution

The fourth proportional to 147,160.38, 203,120.38 and 90,619.14 is: 125,078.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,160.38 : 203,120.38 = 90,619.14 : x
  2. Step 2: Convert to fraction form
    147,160.38/203,120.38 = 90,619.14/x
  3. Step 3: Cross multiply
    147,160.38x = 203,120.38 × 90,619.14
  4. Step 4: Simplify right side
    147,160.38x = 18,406,594,152.07
  5. Step 5: Solve for x
    x = 18,406,594,152.07/147,160.38
  6. Step 6: Final answer
    x = 125,078.46

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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.