Home / 121,529.08-167,665.83-75,585.70

Finding the Fourth Proportional to 121,529.08, 167,665.83 and 75,585.70

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Solution

The fourth proportional to 121,529.08, 167,665.83 and 75,585.70 is: 104,280.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,529.08 : 167,665.83 = 75,585.70 : x
  2. Step 2: Convert to fraction form
    121,529.08/167,665.83 = 75,585.70/x
  3. Step 3: Cross multiply
    121,529.08x = 167,665.83 × 75,585.70
  4. Step 4: Simplify right side
    121,529.08x = 12,673,139,126.63
  5. Step 5: Solve for x
    x = 12,673,139,126.63/121,529.08
  6. Step 6: Final answer
    x = 104,280.71

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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.