Home / 105,307.20-145,290.24-75,097.44

Finding the Fourth Proportional to 105,307.20, 145,290.24 and 75,097.44

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Solution

The fourth proportional to 105,307.20, 145,290.24 and 75,097.44 is: 103,610.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,307.20 : 145,290.24 = 75,097.44 : x
  2. Step 2: Convert to fraction form
    105,307.20/145,290.24 = 75,097.44/x
  3. Step 3: Cross multiply
    105,307.20x = 145,290.24 × 75,097.44
  4. Step 4: Simplify right side
    105,307.20x = 10,910,925,080.99
  5. Step 5: Solve for x
    x = 10,910,925,080.99/105,307.20
  6. Step 6: Final answer
    x = 103,610.44

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1.5x scale

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.