Home / 152,138.20-228,207.30-99,261.40

Finding the Fourth Proportional to 152,138.20, 228,207.30 and 99,261.40

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Solution

The fourth proportional to 152,138.20, 228,207.30 and 99,261.40 is: 148,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,138.20 : 228,207.30 = 99,261.40 : x
  2. Step 2: Convert to fraction form
    152,138.20/228,207.30 = 99,261.40/x
  3. Step 3: Cross multiply
    152,138.20x = 228,207.30 × 99,261.40
  4. Step 4: Simplify right side
    152,138.20x = 22,652,176,088.22
  5. Step 5: Solve for x
    x = 22,652,176,088.22/152,138.20
  6. Step 6: Final answer
    x = 148,892.10

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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.