Home / 173,388.93-239,210.78-128,175.47

Finding the Fourth Proportional to 173,388.93, 239,210.78 and 128,175.47

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Solution

The fourth proportional to 173,388.93, 239,210.78 and 128,175.47 is: 176,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,388.93 : 239,210.78 = 128,175.47 : x
  2. Step 2: Convert to fraction form
    173,388.93/239,210.78 = 128,175.47/x
  3. Step 3: Cross multiply
    173,388.93x = 239,210.78 × 128,175.47
  4. Step 4: Simplify right side
    173,388.93x = 30,660,954,155.57
  5. Step 5: Solve for x
    x = 30,660,954,155.57/173,388.93
  6. Step 6: Final answer
    x = 176,833.40

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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.