Home / 151,504.20-209,066.40-83,521.77

Finding the Fourth Proportional to 151,504.20, 209,066.40 and 83,521.77

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Solution

The fourth proportional to 151,504.20, 209,066.40 and 83,521.77 is: 115,254.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,504.20 : 209,066.40 = 83,521.77 : x
  2. Step 2: Convert to fraction form
    151,504.20/209,066.40 = 83,521.77/x
  3. Step 3: Cross multiply
    151,504.20x = 209,066.40 × 83,521.77
  4. Step 4: Simplify right side
    151,504.20x = 17,461,595,775.53
  5. Step 5: Solve for x
    x = 17,461,595,775.53/151,504.20
  6. Step 6: Final answer
    x = 115,254.86

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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.