Home / 261,931.60-393,070.20-95,719.60

Finding the Fourth Proportional to 261,931.60, 393,070.20 and 95,719.60

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Solution

The fourth proportional to 261,931.60, 393,070.20 and 95,719.60 is: 143,642.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,931.60 : 393,070.20 = 95,719.60 : x
  2. Step 2: Convert to fraction form
    261,931.60/393,070.20 = 95,719.60/x
  3. Step 3: Cross multiply
    261,931.60x = 393,070.20 × 95,719.60
  4. Step 4: Simplify right side
    261,931.60x = 37,624,522,315.92
  5. Step 5: Solve for x
    x = 37,624,522,315.92/261,931.60
  6. Step 6: Final answer
    x = 143,642.55

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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.