Home / 165,809.51-248,690.03-81,547.05

Finding the Fourth Proportional to 165,809.51, 248,690.03 and 81,547.05

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Solution

The fourth proportional to 165,809.51, 248,690.03 and 81,547.05 is: 122,308.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,809.51 : 248,690.03 = 81,547.05 : x
  2. Step 2: Convert to fraction form
    165,809.51/248,690.03 = 81,547.05/x
  3. Step 3: Cross multiply
    165,809.51x = 248,690.03 × 81,547.05
  4. Step 4: Simplify right side
    165,809.51x = 20,279,937,903.18
  5. Step 5: Solve for x
    x = 20,279,937,903.18/165,809.51
  6. Step 6: Final answer
    x = 122,308.66

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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.