Home / 115,440.72-173,153.40-45,331.92

Finding the Fourth Proportional to 115,440.72, 173,153.40 and 45,331.92

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Solution

The fourth proportional to 115,440.72, 173,153.40 and 45,331.92 is: 67,994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,440.72 : 173,153.40 = 45,331.92 : x
  2. Step 2: Convert to fraction form
    115,440.72/173,153.40 = 45,331.92/x
  3. Step 3: Cross multiply
    115,440.72x = 173,153.40 × 45,331.92
  4. Step 4: Simplify right side
    115,440.72x = 7,849,376,076.53
  5. Step 5: Solve for x
    x = 7,849,376,076.53/115,440.72
  6. Step 6: Final answer
    x = 67,994.86

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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.