Home / 150,066.63-206,225.73-143,128.17

Finding the Fourth Proportional to 150,066.63, 206,225.73 and 143,128.17

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Solution

The fourth proportional to 150,066.63, 206,225.73 and 143,128.17 is: 196,690.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,066.63 : 206,225.73 = 143,128.17 : x
  2. Step 2: Convert to fraction form
    150,066.63/206,225.73 = 143,128.17/x
  3. Step 3: Cross multiply
    150,066.63x = 206,225.73 × 143,128.17
  4. Step 4: Simplify right side
    150,066.63x = 29,516,711,341.81
  5. Step 5: Solve for x
    x = 29,516,711,341.81/150,066.63
  6. Step 6: Final answer
    x = 196,690.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.