Home / 151,449.40-209,052.66-103,860.28

Finding the Fourth Proportional to 151,449.40, 209,052.66 and 103,860.28

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Solution

The fourth proportional to 151,449.40, 209,052.66 and 103,860.28 is: 143,363.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,449.40 : 209,052.66 = 103,860.28 : x
  2. Step 2: Convert to fraction form
    151,449.40/209,052.66 = 103,860.28/x
  3. Step 3: Cross multiply
    151,449.40x = 209,052.66 × 103,860.28
  4. Step 4: Simplify right side
    151,449.40x = 21,712,267,802.34
  5. Step 5: Solve for x
    x = 21,712,267,802.34/151,449.40
  6. Step 6: Final answer
    x = 143,363.18

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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.