Home / 125,222.40-172,807.38-67,861.80

Finding the Fourth Proportional to 125,222.40, 172,807.38 and 67,861.80

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Solution

The fourth proportional to 125,222.40, 172,807.38 and 67,861.80 is: 93,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,222.40 : 172,807.38 = 67,861.80 : x
  2. Step 2: Convert to fraction form
    125,222.40/172,807.38 = 67,861.80/x
  3. Step 3: Cross multiply
    125,222.40x = 172,807.38 × 67,861.80
  4. Step 4: Simplify right side
    125,222.40x = 11,727,019,860.08
  5. Step 5: Solve for x
    x = 11,727,019,860.08/125,222.40
  6. Step 6: Final answer
    x = 93,649.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.