Home / 112,172.99-154,787.96-61,868.75

Finding the Fourth Proportional to 112,172.99, 154,787.96 and 61,868.75

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Solution

The fourth proportional to 112,172.99, 154,787.96 and 61,868.75 is: 85,372.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,172.99 : 154,787.96 = 61,868.75 : x
  2. Step 2: Convert to fraction form
    112,172.99/154,787.96 = 61,868.75/x
  3. Step 3: Cross multiply
    112,172.99x = 154,787.96 × 61,868.75
  4. Step 4: Simplify right side
    112,172.99x = 9,576,536,980.98
  5. Step 5: Solve for x
    x = 9,576,536,980.98/112,172.99
  6. Step 6: Final answer
    x = 85,372.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.