Home / 191,813.40-287,720.10-173,442.60

Finding the Fourth Proportional to 191,813.40, 287,720.10 and 173,442.60

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Solution

The fourth proportional to 191,813.40, 287,720.10 and 173,442.60 is: 260,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,813.40 : 287,720.10 = 173,442.60 : x
  2. Step 2: Convert to fraction form
    191,813.40/287,720.10 = 173,442.60/x
  3. Step 3: Cross multiply
    191,813.40x = 287,720.10 × 173,442.60
  4. Step 4: Simplify right side
    191,813.40x = 49,902,922,216.26
  5. Step 5: Solve for x
    x = 49,902,922,216.26/191,813.40
  6. Step 6: Final answer
    x = 260,163.90

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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.