Home / 208,124.64-312,151.75-58,330.46

Finding the Fourth Proportional to 208,124.64, 312,151.75 and 58,330.46

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Solution

The fourth proportional to 208,124.64, 312,151.75 and 58,330.46 is: 87,485.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,124.64 : 312,151.75 = 58,330.46 : x
  2. Step 2: Convert to fraction form
    208,124.64/312,151.75 = 58,330.46/x
  3. Step 3: Cross multiply
    208,124.64x = 312,151.75 × 58,330.46
  4. Step 4: Simplify right side
    208,124.64x = 18,207,955,801.86
  5. Step 5: Solve for x
    x = 18,207,955,801.86/208,124.64
  6. Step 6: Final answer
    x = 87,485.82

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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.