Home / 121,802.07-168,079.95-67,351.04

Finding the Fourth Proportional to 121,802.07, 168,079.95 and 67,351.04

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Solution

The fourth proportional to 121,802.07, 168,079.95 and 67,351.04 is: 92,940.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,802.07 : 168,079.95 = 67,351.04 : x
  2. Step 2: Convert to fraction form
    121,802.07/168,079.95 = 67,351.04/x
  3. Step 3: Cross multiply
    121,802.07x = 168,079.95 × 67,351.04
  4. Step 4: Simplify right side
    121,802.07x = 11,320,358,595.25
  5. Step 5: Solve for x
    x = 11,320,358,595.25/121,802.07
  6. Step 6: Final answer
    x = 92,940.61

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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.