Home / 98,207.12-135,521-55,760.08

Finding the Fourth Proportional to 98,207.12, 135,521 and 55,760.08

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Solution

The fourth proportional to 98,207.12, 135,521 and 55,760.08 is: 76,946.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,207.12 : 135,521 = 55,760.08 : x
  2. Step 2: Convert to fraction form
    98,207.12/135,521 = 55,760.08/x
  3. Step 3: Cross multiply
    98,207.12x = 135,521 × 55,760.08
  4. Step 4: Simplify right side
    98,207.12x = 7,556,661,801.68
  5. Step 5: Solve for x
    x = 7,556,661,801.68/98,207.12
  6. Step 6: Final answer
    x = 76,946.17

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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.