Home / 191,815.20-287,607.60-98,503.20

Finding the Fourth Proportional to 191,815.20, 287,607.60 and 98,503.20

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Solution

The fourth proportional to 191,815.20, 287,607.60 and 98,503.20 is: 147,695.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,815.20 : 287,607.60 = 98,503.20 : x
  2. Step 2: Convert to fraction form
    191,815.20/287,607.60 = 98,503.20/x
  3. Step 3: Cross multiply
    191,815.20x = 287,607.60 × 98,503.20
  4. Step 4: Simplify right side
    191,815.20x = 28,330,268,944.32
  5. Step 5: Solve for x
    x = 28,330,268,944.32/191,815.20
  6. Step 6: Final answer
    x = 147,695.64

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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.