Home / 197,477.87-272,402.51-121,031.28

Finding the Fourth Proportional to 197,477.87, 272,402.51 and 121,031.28

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Solution

The fourth proportional to 197,477.87, 272,402.51 and 121,031.28 is: 166,951.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,477.87 : 272,402.51 = 121,031.28 : x
  2. Step 2: Convert to fraction form
    197,477.87/272,402.51 = 121,031.28/x
  3. Step 3: Cross multiply
    197,477.87x = 272,402.51 × 121,031.28
  4. Step 4: Simplify right side
    197,477.87x = 32,969,223,855.36
  5. Step 5: Solve for x
    x = 32,969,223,855.36/197,477.87
  6. Step 6: Final answer
    x = 166,951.49

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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.