Home / 120,549.36-180,717.04-45,617.08

Finding the Fourth Proportional to 120,549.36, 180,717.04 and 45,617.08

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Solution

The fourth proportional to 120,549.36, 180,717.04 and 45,617.08 is: 68,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,549.36 : 180,717.04 = 45,617.08 : x
  2. Step 2: Convert to fraction form
    120,549.36/180,717.04 = 45,617.08/x
  3. Step 3: Cross multiply
    120,549.36x = 180,717.04 × 45,617.08
  4. Step 4: Simplify right side
    120,549.36x = 8,243,783,671.04
  5. Step 5: Solve for x
    x = 8,243,783,671.04/120,549.36
  6. Step 6: Final answer
    x = 68,385.13

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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.