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Finding the Fourth Proportional to 159,085.81, 219,334.70 and 130,299.42

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Solution

The fourth proportional to 159,085.81, 219,334.70 and 130,299.42 is: 179,646.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,085.81 : 219,334.70 = 130,299.42 : x
  2. Step 2: Convert to fraction form
    159,085.81/219,334.70 = 130,299.42/x
  3. Step 3: Cross multiply
    159,085.81x = 219,334.70 × 130,299.42
  4. Step 4: Simplify right side
    159,085.81x = 28,579,184,195.87
  5. Step 5: Solve for x
    x = 28,579,184,195.87/159,085.81
  6. Step 6: Final answer
    x = 179,646.34

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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.