Home / 159,105.23-219,612.65-104,699.35

Finding the Fourth Proportional to 159,105.23, 219,612.65 and 104,699.35

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Solution

The fourth proportional to 159,105.23, 219,612.65 and 104,699.35 is: 144,516.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,105.23 : 219,612.65 = 104,699.35 : x
  2. Step 2: Convert to fraction form
    159,105.23/219,612.65 = 104,699.35/x
  3. Step 3: Cross multiply
    159,105.23x = 219,612.65 × 104,699.35
  4. Step 4: Simplify right side
    159,105.23x = 22,993,301,706.78
  5. Step 5: Solve for x
    x = 22,993,301,706.78/159,105.23
  6. Step 6: Final answer
    x = 144,516.32

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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.