Home / 120,063.30-180,095.04-31,316.70

Finding the Fourth Proportional to 120,063.30, 180,095.04 and 31,316.70

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Solution

The fourth proportional to 120,063.30, 180,095.04 and 31,316.70 is: 46,975.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,063.30 : 180,095.04 = 31,316.70 : x
  2. Step 2: Convert to fraction form
    120,063.30/180,095.04 = 31,316.70/x
  3. Step 3: Cross multiply
    120,063.30x = 180,095.04 × 31,316.70
  4. Step 4: Simplify right side
    120,063.30x = 5,639,982,339.17
  5. Step 5: Solve for x
    x = 5,639,982,339.17/120,063.30
  6. Step 6: Final answer
    x = 46,975.07

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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.