Home / 197,685.48-272,806.47-107,042.57

Finding the Fourth Proportional to 197,685.48, 272,806.47 and 107,042.57

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Solution

The fourth proportional to 197,685.48, 272,806.47 and 107,042.57 is: 147,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,685.48 : 272,806.47 = 107,042.57 : x
  2. Step 2: Convert to fraction form
    197,685.48/272,806.47 = 107,042.57/x
  3. Step 3: Cross multiply
    197,685.48x = 272,806.47 × 107,042.57
  4. Step 4: Simplify right side
    197,685.48x = 29,201,904,297.40
  5. Step 5: Solve for x
    x = 29,201,904,297.40/197,685.48
  6. Step 6: Final answer
    x = 147,719.01

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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.