Home / 107,947.30-161,775.15-72,307.30

Finding the Fourth Proportional to 107,947.30, 161,775.15 and 72,307.30

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Solution

The fourth proportional to 107,947.30, 161,775.15 and 72,307.30 is: 108,363.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,947.30 : 161,775.15 = 72,307.30 : x
  2. Step 2: Convert to fraction form
    107,947.30/161,775.15 = 72,307.30/x
  3. Step 3: Cross multiply
    107,947.30x = 161,775.15 × 72,307.30
  4. Step 4: Simplify right side
    107,947.30x = 11,697,524,303.60
  5. Step 5: Solve for x
    x = 11,697,524,303.60/107,947.30
  6. Step 6: Final answer
    x = 108,363.29

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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.