Home / 171,280.40-236,335.20-99,634.28

Finding the Fourth Proportional to 171,280.40, 236,335.20 and 99,634.28

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Solution

The fourth proportional to 171,280.40, 236,335.20 and 99,634.28 is: 137,476.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,280.40 : 236,335.20 = 99,634.28 : x
  2. Step 2: Convert to fraction form
    171,280.40/236,335.20 = 99,634.28/x
  3. Step 3: Cross multiply
    171,280.40x = 236,335.20 × 99,634.28
  4. Step 4: Simplify right side
    171,280.40x = 23,547,087,490.66
  5. Step 5: Solve for x
    x = 23,547,087,490.66/171,280.40
  6. Step 6: Final answer
    x = 137,476.84

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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.