Home / 176,139.20-243,244.66-121,830.44

Finding the Fourth Proportional to 176,139.20, 243,244.66 and 121,830.44

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Solution

The fourth proportional to 176,139.20, 243,244.66 and 121,830.44 is: 168,245.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,139.20 : 243,244.66 = 121,830.44 : x
  2. Step 2: Convert to fraction form
    176,139.20/243,244.66 = 121,830.44/x
  3. Step 3: Cross multiply
    176,139.20x = 243,244.66 × 121,830.44
  4. Step 4: Simplify right side
    176,139.20x = 29,634,603,955.45
  5. Step 5: Solve for x
    x = 29,634,603,955.45/176,139.20
  6. Step 6: Final answer
    x = 168,245.36

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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.