Home / 197,228.71-272,109.13-112,285.63

Finding the Fourth Proportional to 197,228.71, 272,109.13 and 112,285.63

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Solution

The fourth proportional to 197,228.71, 272,109.13 and 112,285.63 is: 154,916.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,228.71 : 272,109.13 = 112,285.63 : x
  2. Step 2: Convert to fraction form
    197,228.71/272,109.13 = 112,285.63/x
  3. Step 3: Cross multiply
    197,228.71x = 272,109.13 × 112,285.63
  4. Step 4: Simplify right side
    197,228.71x = 30,553,945,090.80
  5. Step 5: Solve for x
    x = 30,553,945,090.80/197,228.71
  6. Step 6: Final answer
    x = 154,916.32

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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.