Home / 152,155.70-228,233.55-99,278.90

Finding the Fourth Proportional to 152,155.70, 228,233.55 and 99,278.90

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Solution

The fourth proportional to 152,155.70, 228,233.55 and 99,278.90 is: 148,918.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,155.70 : 228,233.55 = 99,278.90 : x
  2. Step 2: Convert to fraction form
    152,155.70/228,233.55 = 99,278.90/x
  3. Step 3: Cross multiply
    152,155.70x = 228,233.55 × 99,278.90
  4. Step 4: Simplify right side
    152,155.70x = 22,658,775,787.10
  5. Step 5: Solve for x
    x = 22,658,775,787.10/152,155.70
  6. Step 6: Final answer
    x = 148,918.35

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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.