Home / 212,091.80-318,139.90-62,334.76

Finding the Fourth Proportional to 212,091.80, 318,139.90 and 62,334.76

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Solution

The fourth proportional to 212,091.80, 318,139.90 and 62,334.76 is: 93,502.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,091.80 : 318,139.90 = 62,334.76 : x
  2. Step 2: Convert to fraction form
    212,091.80/318,139.90 = 62,334.76/x
  3. Step 3: Cross multiply
    212,091.80x = 318,139.90 × 62,334.76
  4. Step 4: Simplify right side
    212,091.80x = 19,831,174,312.92
  5. Step 5: Solve for x
    x = 19,831,174,312.92/212,091.80
  6. Step 6: Final answer
    x = 93,502.79

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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.