Home / 161,689.25-223,138.06-90,069.32

Finding the Fourth Proportional to 161,689.25, 223,138.06 and 90,069.32

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Solution

The fourth proportional to 161,689.25, 223,138.06 and 90,069.32 is: 124,299.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,689.25 : 223,138.06 = 90,069.32 : x
  2. Step 2: Convert to fraction form
    161,689.25/223,138.06 = 90,069.32/x
  3. Step 3: Cross multiply
    161,689.25x = 223,138.06 × 90,069.32
  4. Step 4: Simplify right side
    161,689.25x = 20,097,891,989.46
  5. Step 5: Solve for x
    x = 20,097,891,989.46/161,689.25
  6. Step 6: Final answer
    x = 124,299.50

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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.