Home / 121,746.72-182,672.88-42,917.28

Finding the Fourth Proportional to 121,746.72, 182,672.88 and 42,917.28

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Solution

The fourth proportional to 121,746.72, 182,672.88 and 42,917.28 is: 64,394.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,746.72 : 182,672.88 = 42,917.28 : x
  2. Step 2: Convert to fraction form
    121,746.72/182,672.88 = 42,917.28/x
  3. Step 3: Cross multiply
    121,746.72x = 182,672.88 × 42,917.28
  4. Step 4: Simplify right side
    121,746.72x = 7,839,823,139.37
  5. Step 5: Solve for x
    x = 7,839,823,139.37/121,746.72
  6. Step 6: Final answer
    x = 64,394.53

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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.