Home / 109,938.30-164,907.45-103,814.70

Finding the Fourth Proportional to 109,938.30, 164,907.45 and 103,814.70

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Solution

The fourth proportional to 109,938.30, 164,907.45 and 103,814.70 is: 155,722.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,938.30 : 164,907.45 = 103,814.70 : x
  2. Step 2: Convert to fraction form
    109,938.30/164,907.45 = 103,814.70/x
  3. Step 3: Cross multiply
    109,938.30x = 164,907.45 × 103,814.70
  4. Step 4: Simplify right side
    109,938.30x = 17,119,817,449.52
  5. Step 5: Solve for x
    x = 17,119,817,449.52/109,938.30
  6. Step 6: Final answer
    x = 155,722.05

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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.