Home / 112,948.40-169,228.20-73,485.20

Finding the Fourth Proportional to 112,948.40, 169,228.20 and 73,485.20

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Solution

The fourth proportional to 112,948.40, 169,228.20 and 73,485.20 is: 110,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,948.40 : 169,228.20 = 73,485.20 : x
  2. Step 2: Convert to fraction form
    112,948.40/169,228.20 = 73,485.20/x
  3. Step 3: Cross multiply
    112,948.40x = 169,228.20 × 73,485.20
  4. Step 4: Simplify right side
    112,948.40x = 12,435,768,122.64
  5. Step 5: Solve for x
    x = 12,435,768,122.64/112,948.40
  6. Step 6: Final answer
    x = 110,101.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.