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Finding the Fourth Proportional to 119,389.42, 179,045.52 and 39,409.42

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Solution

The fourth proportional to 119,389.42, 179,045.52 and 39,409.42 is: 59,101.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,389.42 : 179,045.52 = 39,409.42 : x
  2. Step 2: Convert to fraction form
    119,389.42/179,045.52 = 39,409.42/x
  3. Step 3: Cross multiply
    119,389.42x = 179,045.52 × 39,409.42
  4. Step 4: Simplify right side
    119,389.42x = 7,056,080,096.80
  5. Step 5: Solve for x
    x = 7,056,080,096.80/119,389.42
  6. Step 6: Final answer
    x = 59,101.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.