Home / 112,396.68-155,102.83-61,411.18

Finding the Fourth Proportional to 112,396.68, 155,102.83 and 61,411.18

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Solution

The fourth proportional to 112,396.68, 155,102.83 and 61,411.18 is: 84,744.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,396.68 : 155,102.83 = 61,411.18 : x
  2. Step 2: Convert to fraction form
    112,396.68/155,102.83 = 61,411.18/x
  3. Step 3: Cross multiply
    112,396.68x = 155,102.83 × 61,411.18
  4. Step 4: Simplify right side
    112,396.68x = 9,525,047,811.64
  5. Step 5: Solve for x
    x = 9,525,047,811.64/112,396.68
  6. Step 6: Final answer
    x = 84,744.92

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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.