Home / 216,626.07-298,957.77-121,132.74

Finding the Fourth Proportional to 216,626.07, 298,957.77 and 121,132.74

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Solution

The fourth proportional to 216,626.07, 298,957.77 and 121,132.74 is: 167,170.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,626.07 : 298,957.77 = 121,132.74 : x
  2. Step 2: Convert to fraction form
    216,626.07/298,957.77 = 121,132.74/x
  3. Step 3: Cross multiply
    216,626.07x = 298,957.77 × 121,132.74
  4. Step 4: Simplify right side
    216,626.07x = 36,213,573,824.39
  5. Step 5: Solve for x
    x = 36,213,573,824.39/216,626.07
  6. Step 6: Final answer
    x = 167,170.89

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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.