Home / 112,269.60-168,404.40-42,145.20

Finding the Fourth Proportional to 112,269.60, 168,404.40 and 42,145.20

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Solution

The fourth proportional to 112,269.60, 168,404.40 and 42,145.20 is: 63,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,269.60 : 168,404.40 = 42,145.20 : x
  2. Step 2: Convert to fraction form
    112,269.60/168,404.40 = 42,145.20/x
  3. Step 3: Cross multiply
    112,269.60x = 168,404.40 × 42,145.20
  4. Step 4: Simplify right side
    112,269.60x = 7,097,437,118.88
  5. Step 5: Solve for x
    x = 7,097,437,118.88/112,269.60
  6. Step 6: Final answer
    x = 63,217.80

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1.5x scale

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.