Home / 224,128.76-309,293.64-122,155.16

Finding the Fourth Proportional to 224,128.76, 309,293.64 and 122,155.16

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Solution

The fourth proportional to 224,128.76, 309,293.64 and 122,155.16 is: 168,571.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,128.76 : 309,293.64 = 122,155.16 : x
  2. Step 2: Convert to fraction form
    224,128.76/309,293.64 = 122,155.16/x
  3. Step 3: Cross multiply
    224,128.76x = 309,293.64 × 122,155.16
  4. Step 4: Simplify right side
    224,128.76x = 37,781,812,534.71
  5. Step 5: Solve for x
    x = 37,781,812,534.71/224,128.76
  6. Step 6: Final answer
    x = 168,571.91

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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.