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Finding the Fourth Proportional to 150,003.60, 225,005.40 and 86,931.60

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Solution

The fourth proportional to 150,003.60, 225,005.40 and 86,931.60 is: 130,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,003.60 : 225,005.40 = 86,931.60 : x
  2. Step 2: Convert to fraction form
    150,003.60/225,005.40 = 86,931.60/x
  3. Step 3: Cross multiply
    150,003.60x = 225,005.40 × 86,931.60
  4. Step 4: Simplify right side
    150,003.60x = 19,560,079,430.64
  5. Step 5: Solve for x
    x = 19,560,079,430.64/150,003.60
  6. Step 6: Final answer
    x = 130,397.40

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1.5x scale

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.