Home / 161,785.82-223,264.78-90,164.40

Finding the Fourth Proportional to 161,785.82, 223,264.78 and 90,164.40

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Solution

The fourth proportional to 161,785.82, 223,264.78 and 90,164.40 is: 124,427.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,785.82 : 223,264.78 = 90,164.40 : x
  2. Step 2: Convert to fraction form
    161,785.82/223,264.78 = 90,164.40/x
  3. Step 3: Cross multiply
    161,785.82x = 223,264.78 × 90,164.40
  4. Step 4: Simplify right side
    161,785.82x = 20,130,534,929.83
  5. Step 5: Solve for x
    x = 20,130,534,929.83/161,785.82
  6. Step 6: Final answer
    x = 124,427.07

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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.