Home / 98,111.20-135,393.72-55,669.62

Finding the Fourth Proportional to 98,111.20, 135,393.72 and 55,669.62

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Solution

The fourth proportional to 98,111.20, 135,393.72 and 55,669.62 is: 76,824.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,111.20 : 135,393.72 = 55,669.62 : x
  2. Step 2: Convert to fraction form
    98,111.20/135,393.72 = 55,669.62/x
  3. Step 3: Cross multiply
    98,111.20x = 135,393.72 × 55,669.62
  4. Step 4: Simplify right side
    98,111.20x = 7,537,316,942.79
  5. Step 5: Solve for x
    x = 7,537,316,942.79/98,111.20
  6. Step 6: Final answer
    x = 76,824.23

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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.