Home / 118,329.86-163,289.12-64,604.52

Finding the Fourth Proportional to 118,329.86, 163,289.12 and 64,604.52

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Solution

The fourth proportional to 118,329.86, 163,289.12 and 64,604.52 is: 89,150.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,329.86 : 163,289.12 = 64,604.52 : x
  2. Step 2: Convert to fraction form
    118,329.86/163,289.12 = 64,604.52/x
  3. Step 3: Cross multiply
    118,329.86x = 163,289.12 × 64,604.52
  4. Step 4: Simplify right side
    118,329.86x = 10,549,214,895.80
  5. Step 5: Solve for x
    x = 10,549,214,895.80/118,329.86
  6. Step 6: Final answer
    x = 89,150.91

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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.