Home / 119,119.83-178,641.84-39,139.35

Finding the Fourth Proportional to 119,119.83, 178,641.84 and 39,139.35

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Solution

The fourth proportional to 119,119.83, 178,641.84 and 39,139.35 is: 58,696.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,119.83 : 178,641.84 = 39,139.35 : x
  2. Step 2: Convert to fraction form
    119,119.83/178,641.84 = 39,139.35/x
  3. Step 3: Cross multiply
    119,119.83x = 178,641.84 × 39,139.35
  4. Step 4: Simplify right side
    119,119.83x = 6,991,925,500.40
  5. Step 5: Solve for x
    x = 6,991,925,500.40/119,119.83
  6. Step 6: Final answer
    x = 58,696.57

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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.