Home / 117,170.24-175,719-42,280.68

Finding the Fourth Proportional to 117,170.24, 175,719 and 42,280.68

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Solution

The fourth proportional to 117,170.24, 175,719 and 42,280.68 is: 63,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,170.24 : 175,719 = 42,280.68 : x
  2. Step 2: Convert to fraction form
    117,170.24/175,719 = 42,280.68/x
  3. Step 3: Cross multiply
    117,170.24x = 175,719 × 42,280.68
  4. Step 4: Simplify right side
    117,170.24x = 7,429,518,808.92
  5. Step 5: Solve for x
    x = 7,429,518,808.92/117,170.24
  6. Step 6: Final answer
    x = 63,407.90

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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.