Home / 210,980.40-316,623.06-82,915.74

Finding the Fourth Proportional to 210,980.40, 316,623.06 and 82,915.74

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Solution

The fourth proportional to 210,980.40, 316,623.06 and 82,915.74 is: 124,433.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,980.40 : 316,623.06 = 82,915.74 : x
  2. Step 2: Convert to fraction form
    210,980.40/316,623.06 = 82,915.74/x
  3. Step 3: Cross multiply
    210,980.40x = 316,623.06 × 82,915.74
  4. Step 4: Simplify right side
    210,980.40x = 26,253,035,320.96
  5. Step 5: Solve for x
    x = 26,253,035,320.96/210,980.40
  6. Step 6: Final answer
    x = 124,433.53

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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.