Home / 221,806.02-306,091.92-126,312.72

Finding the Fourth Proportional to 221,806.02, 306,091.92 and 126,312.72

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Solution

The fourth proportional to 221,806.02, 306,091.92 and 126,312.72 is: 174,311.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,806.02 : 306,091.92 = 126,312.72 : x
  2. Step 2: Convert to fraction form
    221,806.02/306,091.92 = 126,312.72/x
  3. Step 3: Cross multiply
    221,806.02x = 306,091.92 × 126,312.72
  4. Step 4: Simplify right side
    221,806.02x = 38,663,302,985.22
  5. Step 5: Solve for x
    x = 38,663,302,985.22/221,806.02
  6. Step 6: Final answer
    x = 174,311.33

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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.