Home / 230,134.02-317,564.73-128,151.78

Finding the Fourth Proportional to 230,134.02, 317,564.73 and 128,151.78

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Solution

The fourth proportional to 230,134.02, 317,564.73 and 128,151.78 is: 176,838.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,134.02 : 317,564.73 = 128,151.78 : x
  2. Step 2: Convert to fraction form
    230,134.02/317,564.73 = 128,151.78/x
  3. Step 3: Cross multiply
    230,134.02x = 317,564.73 × 128,151.78
  4. Step 4: Simplify right side
    230,134.02x = 40,696,485,414.72
  5. Step 5: Solve for x
    x = 40,696,485,414.72/230,134.02
  6. Step 6: Final answer
    x = 176,838.20

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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.