Home / 128,460.08-177,335.52-96,641.12

Finding the Fourth Proportional to 128,460.08, 177,335.52 and 96,641.12

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Solution

The fourth proportional to 128,460.08, 177,335.52 and 96,641.12 is: 133,410.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,460.08 : 177,335.52 = 96,641.12 : x
  2. Step 2: Convert to fraction form
    128,460.08/177,335.52 = 96,641.12/x
  3. Step 3: Cross multiply
    128,460.08x = 177,335.52 × 96,641.12
  4. Step 4: Simplify right side
    128,460.08x = 17,137,903,268.58
  5. Step 5: Solve for x
    x = 17,137,903,268.58/128,460.08
  6. Step 6: Final answer
    x = 133,410.34

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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.