Home / 112,811.80-155,677.62-61,822.84

Finding the Fourth Proportional to 112,811.80, 155,677.62 and 61,822.84

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Solution

The fourth proportional to 112,811.80, 155,677.62 and 61,822.84 is: 85,314.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,811.80 : 155,677.62 = 61,822.84 : x
  2. Step 2: Convert to fraction form
    112,811.80/155,677.62 = 61,822.84/x
  3. Step 3: Cross multiply
    112,811.80x = 155,677.62 × 61,822.84
  4. Step 4: Simplify right side
    112,811.80x = 9,624,432,592.84
  5. Step 5: Solve for x
    x = 9,624,432,592.84/112,811.80
  6. Step 6: Final answer
    x = 85,314.06

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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.