Home / 116,208.80-160,421.26-89,341.90

Finding the Fourth Proportional to 116,208.80, 160,421.26 and 89,341.90

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Solution

The fourth proportional to 116,208.80, 160,421.26 and 89,341.90 is: 123,332.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,208.80 : 160,421.26 = 89,341.90 : x
  2. Step 2: Convert to fraction form
    116,208.80/160,421.26 = 89,341.90/x
  3. Step 3: Cross multiply
    116,208.80x = 160,421.26 × 89,341.90
  4. Step 4: Simplify right side
    116,208.80x = 14,332,340,168.79
  5. Step 5: Solve for x
    x = 14,332,340,168.79/116,208.80
  6. Step 6: Final answer
    x = 123,332.66

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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.