Home / 165,004.58-247,088.21-138,280.30

Finding the Fourth Proportional to 165,004.58, 247,088.21 and 138,280.30

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Solution

The fourth proportional to 165,004.58, 247,088.21 and 138,280.30 is: 207,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,004.58 : 247,088.21 = 138,280.30 : x
  2. Step 2: Convert to fraction form
    165,004.58/247,088.21 = 138,280.30/x
  3. Step 3: Cross multiply
    165,004.58x = 247,088.21 × 138,280.30
  4. Step 4: Simplify right side
    165,004.58x = 34,167,431,805.26
  5. Step 5: Solve for x
    x = 34,167,431,805.26/165,004.58
  6. Step 6: Final answer
    x = 207,069.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.