Home / 221,895.48-306,140.85-126,334.47

Finding the Fourth Proportional to 221,895.48, 306,140.85 and 126,334.47

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Solution

The fourth proportional to 221,895.48, 306,140.85 and 126,334.47 is: 174,298.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,895.48 : 306,140.85 = 126,334.47 : x
  2. Step 2: Convert to fraction form
    221,895.48/306,140.85 = 126,334.47/x
  3. Step 3: Cross multiply
    221,895.48x = 306,140.85 × 126,334.47
  4. Step 4: Simplify right side
    221,895.48x = 38,676,142,030.10
  5. Step 5: Solve for x
    x = 38,676,142,030.10/221,895.48
  6. Step 6: Final answer
    x = 174,298.92

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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.