Home / 118,428.28-163,415.28-76,044.22

Finding the Fourth Proportional to 118,428.28, 163,415.28 and 76,044.22

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Solution

The fourth proportional to 118,428.28, 163,415.28 and 76,044.22 is: 104,930.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,428.28 : 163,415.28 = 76,044.22 : x
  2. Step 2: Convert to fraction form
    118,428.28/163,415.28 = 76,044.22/x
  3. Step 3: Cross multiply
    118,428.28x = 163,415.28 × 76,044.22
  4. Step 4: Simplify right side
    118,428.28x = 12,426,787,503.68
  5. Step 5: Solve for x
    x = 12,426,787,503.68/118,428.28
  6. Step 6: Final answer
    x = 104,930.91

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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.