Home / 115,219.40-172,829.09-36,339.77

Finding the Fourth Proportional to 115,219.40, 172,829.09 and 36,339.77

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Solution

The fourth proportional to 115,219.40, 172,829.09 and 36,339.77 is: 54,509.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,219.40 : 172,829.09 = 36,339.77 : x
  2. Step 2: Convert to fraction form
    115,219.40/172,829.09 = 36,339.77/x
  3. Step 3: Cross multiply
    115,219.40x = 172,829.09 × 36,339.77
  4. Step 4: Simplify right side
    115,219.40x = 6,280,569,902.83
  5. Step 5: Solve for x
    x = 6,280,569,902.83/115,219.40
  6. Step 6: Final answer
    x = 54,509.66

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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.