Home / 121,063.47-167,072.97-100,886.55

Finding the Fourth Proportional to 121,063.47, 167,072.97 and 100,886.55

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Solution

The fourth proportional to 121,063.47, 167,072.97 and 100,886.55 is: 139,227.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,063.47 : 167,072.97 = 100,886.55 : x
  2. Step 2: Convert to fraction form
    121,063.47/167,072.97 = 100,886.55/x
  3. Step 3: Cross multiply
    121,063.47x = 167,072.97 × 100,886.55
  4. Step 4: Simplify right side
    121,063.47x = 16,855,415,541.55
  5. Step 5: Solve for x
    x = 16,855,415,541.55/121,063.47
  6. Step 6: Final answer
    x = 139,227.92

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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.