Home / 161,903.10-223,427.26-90,287.66

Finding the Fourth Proportional to 161,903.10, 223,427.26 and 90,287.66

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Solution

The fourth proportional to 161,903.10, 223,427.26 and 90,287.66 is: 124,597.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,903.10 : 223,427.26 = 90,287.66 : x
  2. Step 2: Convert to fraction form
    161,903.10/223,427.26 = 90,287.66/x
  3. Step 3: Cross multiply
    161,903.10x = 223,427.26 × 90,287.66
  4. Step 4: Simplify right side
    161,903.10x = 20,172,725,157.04
  5. Step 5: Solve for x
    x = 20,172,725,157.04/161,903.10
  6. Step 6: Final answer
    x = 124,597.52

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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.