Home / 212,200.09-317,872.76-98,187.23

Finding the Fourth Proportional to 212,200.09, 317,872.76 and 98,187.23

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Solution

The fourth proportional to 212,200.09, 317,872.76 and 98,187.23 is: 147,083.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,200.09 : 317,872.76 = 98,187.23 : x
  2. Step 2: Convert to fraction form
    212,200.09/317,872.76 = 98,187.23/x
  3. Step 3: Cross multiply
    212,200.09x = 317,872.76 × 98,187.23
  4. Step 4: Simplify right side
    212,200.09x = 31,211,044,084.76
  5. Step 5: Solve for x
    x = 31,211,044,084.76/212,200.09
  6. Step 6: Final answer
    x = 147,083.09

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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.