Home / 172,222.20-258,368.76-72,323.64

Finding the Fourth Proportional to 172,222.20, 258,368.76 and 72,323.64

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Solution

The fourth proportional to 172,222.20, 258,368.76 and 72,323.64 is: 108,500.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,222.20 : 258,368.76 = 72,323.64 : x
  2. Step 2: Convert to fraction form
    172,222.20/258,368.76 = 72,323.64/x
  3. Step 3: Cross multiply
    172,222.20x = 258,368.76 × 72,323.64
  4. Step 4: Simplify right side
    172,222.20x = 18,686,169,185.49
  5. Step 5: Solve for x
    x = 18,686,169,185.49/172,222.20
  6. Step 6: Final answer
    x = 108,500.35

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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.