Home / 159,210.72-219,742.18-91,273.32

Finding the Fourth Proportional to 159,210.72, 219,742.18 and 91,273.32

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Solution

The fourth proportional to 159,210.72, 219,742.18 and 91,273.32 is: 125,975.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,210.72 : 219,742.18 = 91,273.32 : x
  2. Step 2: Convert to fraction form
    159,210.72/219,742.18 = 91,273.32/x
  3. Step 3: Cross multiply
    159,210.72x = 219,742.18 × 91,273.32
  4. Step 4: Simplify right side
    159,210.72x = 20,056,598,312.64
  5. Step 5: Solve for x
    x = 20,056,598,312.64/159,210.72
  6. Step 6: Final answer
    x = 125,975.17

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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.