Home / 120,688.47-166,550.54-66,981.22

Finding the Fourth Proportional to 120,688.47, 166,550.54 and 66,981.22

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Solution

The fourth proportional to 120,688.47, 166,550.54 and 66,981.22 is: 92,434.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,688.47 : 166,550.54 = 66,981.22 : x
  2. Step 2: Convert to fraction form
    120,688.47/166,550.54 = 66,981.22/x
  3. Step 3: Cross multiply
    120,688.47x = 166,550.54 × 66,981.22
  4. Step 4: Simplify right side
    120,688.47x = 11,155,758,360.86
  5. Step 5: Solve for x
    x = 11,155,758,360.86/120,688.47
  6. Step 6: Final answer
    x = 92,434.33

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1.5x scale

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.