Home / 103,801.14-155,701.80-74,276.64

Finding the Fourth Proportional to 103,801.14, 155,701.80 and 74,276.64

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Solution

The fourth proportional to 103,801.14, 155,701.80 and 74,276.64 is: 111,415.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,801.14 : 155,701.80 = 74,276.64 : x
  2. Step 2: Convert to fraction form
    103,801.14/155,701.80 = 74,276.64/x
  3. Step 3: Cross multiply
    103,801.14x = 155,701.80 × 74,276.64
  4. Step 4: Simplify right side
    103,801.14x = 11,565,006,545.95
  5. Step 5: Solve for x
    x = 11,565,006,545.95/103,801.14
  6. Step 6: Final answer
    x = 111,415.02

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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.