Home / 148,077.30-221,860.80-69,029.40

Finding the Fourth Proportional to 148,077.30, 221,860.80 and 69,029.40

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Solution

The fourth proportional to 148,077.30, 221,860.80 and 69,029.40 is: 103,425.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,077.30 : 221,860.80 = 69,029.40 : x
  2. Step 2: Convert to fraction form
    148,077.30/221,860.80 = 69,029.40/x
  3. Step 3: Cross multiply
    148,077.30x = 221,860.80 × 69,029.40
  4. Step 4: Simplify right side
    148,077.30x = 15,314,917,907.52
  5. Step 5: Solve for x
    x = 15,314,917,907.52/148,077.30
  6. Step 6: Final answer
    x = 103,425.16

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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.