Home / 212,971.38-319,423.20-70,804.84

Finding the Fourth Proportional to 212,971.38, 319,423.20 and 70,804.84

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Solution

The fourth proportional to 212,971.38, 319,423.20 and 70,804.84 is: 106,196.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,971.38 : 319,423.20 = 70,804.84 : x
  2. Step 2: Convert to fraction form
    212,971.38/319,423.20 = 70,804.84/x
  3. Step 3: Cross multiply
    212,971.38x = 319,423.20 × 70,804.84
  4. Step 4: Simplify right side
    212,971.38x = 22,616,708,568.29
  5. Step 5: Solve for x
    x = 22,616,708,568.29/212,971.38
  6. Step 6: Final answer
    x = 106,196.00

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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.