Home / 207,905.51-286,909.20-117,261.20

Finding the Fourth Proportional to 207,905.51, 286,909.20 and 117,261.20

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Solution

The fourth proportional to 207,905.51, 286,909.20 and 117,261.20 is: 161,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,905.51 : 286,909.20 = 117,261.20 : x
  2. Step 2: Convert to fraction form
    207,905.51/286,909.20 = 117,261.20/x
  3. Step 3: Cross multiply
    207,905.51x = 286,909.20 × 117,261.20
  4. Step 4: Simplify right side
    207,905.51x = 33,643,315,648.49
  5. Step 5: Solve for x
    x = 33,643,315,648.49/207,905.51
  6. Step 6: Final answer
    x = 161,820.23

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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.