Home / 121,962.08-168,302.16-67,516.28

Finding the Fourth Proportional to 121,962.08, 168,302.16 and 67,516.28

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Solution

The fourth proportional to 121,962.08, 168,302.16 and 67,516.28 is: 93,169.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,962.08 : 168,302.16 = 67,516.28 : x
  2. Step 2: Convert to fraction form
    121,962.08/168,302.16 = 67,516.28/x
  3. Step 3: Cross multiply
    121,962.08x = 168,302.16 × 67,516.28
  4. Step 4: Simplify right side
    121,962.08x = 11,363,135,759.16
  5. Step 5: Solve for x
    x = 11,363,135,759.16/121,962.08
  6. Step 6: Final answer
    x = 93,169.42

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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.