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Finding the Fourth Proportional to 135,341.40, 203,012.10 and 97,287.60

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Solution

The fourth proportional to 135,341.40, 203,012.10 and 97,287.60 is: 145,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,341.40 : 203,012.10 = 97,287.60 : x
  2. Step 2: Convert to fraction form
    135,341.40/203,012.10 = 97,287.60/x
  3. Step 3: Cross multiply
    135,341.40x = 203,012.10 × 97,287.60
  4. Step 4: Simplify right side
    135,341.40x = 19,750,559,979.96
  5. Step 5: Solve for x
    x = 19,750,559,979.96/135,341.40
  6. Step 6: Final answer
    x = 145,931.40

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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.