Home / 112,539.20-168,703.20-42,465.60

Finding the Fourth Proportional to 112,539.20, 168,703.20 and 42,465.60

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Solution

The fourth proportional to 112,539.20, 168,703.20 and 42,465.60 is: 63,658.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,539.20 : 168,703.20 = 42,465.60 : x
  2. Step 2: Convert to fraction form
    112,539.20/168,703.20 = 42,465.60/x
  3. Step 3: Cross multiply
    112,539.20x = 168,703.20 × 42,465.60
  4. Step 4: Simplify right side
    112,539.20x = 7,164,082,609.92
  5. Step 5: Solve for x
    x = 7,164,082,609.92/112,539.20
  6. Step 6: Final answer
    x = 63,658.55

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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.