Home / 165,980.25-229,055.48-90,528.75

Finding the Fourth Proportional to 165,980.25, 229,055.48 and 90,528.75

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Solution

The fourth proportional to 165,980.25, 229,055.48 and 90,528.75 is: 124,931.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,980.25 : 229,055.48 = 90,528.75 : x
  2. Step 2: Convert to fraction form
    165,980.25/229,055.48 = 90,528.75/x
  3. Step 3: Cross multiply
    165,980.25x = 229,055.48 × 90,528.75
  4. Step 4: Simplify right side
    165,980.25x = 20,736,106,171.89
  5. Step 5: Solve for x
    x = 20,736,106,171.89/165,980.25
  6. Step 6: Final answer
    x = 124,931.17

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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.