Home / 197,345.77-272,285.70-115,630.12

Finding the Fourth Proportional to 197,345.77, 272,285.70 and 115,630.12

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Solution

The fourth proportional to 197,345.77, 272,285.70 and 115,630.12 is: 159,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,345.77 : 272,285.70 = 115,630.12 : x
  2. Step 2: Convert to fraction form
    197,345.77/272,285.70 = 115,630.12/x
  3. Step 3: Cross multiply
    197,345.77x = 272,285.70 × 115,630.12
  4. Step 4: Simplify right side
    197,345.77x = 31,484,427,033.47
  5. Step 5: Solve for x
    x = 31,484,427,033.47/197,345.77
  6. Step 6: Final answer
    x = 159,539.41

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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.