Home / 261,784.59-392,313.58-119,281.60

Finding the Fourth Proportional to 261,784.59, 392,313.58 and 119,281.60

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Solution

The fourth proportional to 261,784.59, 392,313.58 and 119,281.60 is: 178,756.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,784.59 : 392,313.58 = 119,281.60 : x
  2. Step 2: Convert to fraction form
    261,784.59/392,313.58 = 119,281.60/x
  3. Step 3: Cross multiply
    261,784.59x = 392,313.58 × 119,281.60
  4. Step 4: Simplify right side
    261,784.59x = 46,795,791,524.13
  5. Step 5: Solve for x
    x = 46,795,791,524.13/261,784.59
  6. Step 6: Final answer
    x = 178,756.86

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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.