Home / 208,037.60-312,071.52-67,790.24

Finding the Fourth Proportional to 208,037.60, 312,071.52 and 67,790.24

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Solution

The fourth proportional to 208,037.60, 312,071.52 and 67,790.24 is: 101,690.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,037.60 : 312,071.52 = 67,790.24 : x
  2. Step 2: Convert to fraction form
    208,037.60/312,071.52 = 67,790.24/x
  3. Step 3: Cross multiply
    208,037.60x = 312,071.52 × 67,790.24
  4. Step 4: Simplify right side
    208,037.60x = 21,155,403,237.96
  5. Step 5: Solve for x
    x = 21,155,403,237.96/208,037.60
  6. Step 6: Final answer
    x = 101,690.29

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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.