Home / 224,036.32-309,166.86-128,540.92

Finding the Fourth Proportional to 224,036.32, 309,166.86 and 128,540.92

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Solution

The fourth proportional to 224,036.32, 309,166.86 and 128,540.92 is: 177,384.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,036.32 : 309,166.86 = 128,540.92 : x
  2. Step 2: Convert to fraction form
    224,036.32/309,166.86 = 128,540.92/x
  3. Step 3: Cross multiply
    224,036.32x = 309,166.86 × 128,540.92
  4. Step 4: Simplify right side
    224,036.32x = 39,740,592,617.91
  5. Step 5: Solve for x
    x = 39,740,592,617.91/224,036.32
  6. Step 6: Final answer
    x = 177,384.60

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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.