Home / 160,840.95-221,987.13-89,244.05

Finding the Fourth Proportional to 160,840.95, 221,987.13 and 89,244.05

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Solution

The fourth proportional to 160,840.95, 221,987.13 and 89,244.05 is: 123,171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,840.95 : 221,987.13 = 89,244.05 : x
  2. Step 2: Convert to fraction form
    160,840.95/221,987.13 = 89,244.05/x
  3. Step 3: Cross multiply
    160,840.95x = 221,987.13 × 89,244.05
  4. Step 4: Simplify right side
    160,840.95x = 19,811,029,419.14
  5. Step 5: Solve for x
    x = 19,811,029,419.14/160,840.95
  6. Step 6: Final answer
    x = 123,171.55

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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.