Home / 112,361.18-155,057.40-61,373.90

Finding the Fourth Proportional to 112,361.18, 155,057.40 and 61,373.90

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Solution

The fourth proportional to 112,361.18, 155,057.40 and 61,373.90 is: 84,695.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,361.18 : 155,057.40 = 61,373.90 : x
  2. Step 2: Convert to fraction form
    112,361.18/155,057.40 = 61,373.90/x
  3. Step 3: Cross multiply
    112,361.18x = 155,057.40 × 61,373.90
  4. Step 4: Simplify right side
    112,361.18x = 9,516,477,361.86
  5. Step 5: Solve for x
    x = 9,516,477,361.86/112,361.18
  6. Step 6: Final answer
    x = 84,695.42

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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.