Home / 179,530.92-247,639.14-128,442.60

Finding the Fourth Proportional to 179,530.92, 247,639.14 and 128,442.60

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Solution

The fourth proportional to 179,530.92, 247,639.14 and 128,442.60 is: 177,169.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,530.92 : 247,639.14 = 128,442.60 : x
  2. Step 2: Convert to fraction form
    179,530.92/247,639.14 = 128,442.60/x
  3. Step 3: Cross multiply
    179,530.92x = 247,639.14 × 128,442.60
  4. Step 4: Simplify right side
    179,530.92x = 31,807,415,003.36
  5. Step 5: Solve for x
    x = 31,807,415,003.36/179,530.92
  6. Step 6: Final answer
    x = 177,169.57

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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.