Home / 112,409.72-155,835.69-106,417.24

Finding the Fourth Proportional to 112,409.72, 155,835.69 and 106,417.24

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Solution

The fourth proportional to 112,409.72, 155,835.69 and 106,417.24 is: 147,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,409.72 : 155,835.69 = 106,417.24 : x
  2. Step 2: Convert to fraction form
    112,409.72/155,835.69 = 106,417.24/x
  3. Step 3: Cross multiply
    112,409.72x = 155,835.69 × 106,417.24
  4. Step 4: Simplify right side
    112,409.72x = 16,583,604,023.30
  5. Step 5: Solve for x
    x = 16,583,604,023.30/112,409.72
  6. Step 6: Final answer
    x = 147,528.20

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.