Home / 191,739.87-287,095.38-107,259.45

Finding the Fourth Proportional to 191,739.87, 287,095.38 and 107,259.45

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Solution

The fourth proportional to 191,739.87, 287,095.38 and 107,259.45 is: 160,601.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,739.87 : 287,095.38 = 107,259.45 : x
  2. Step 2: Convert to fraction form
    191,739.87/287,095.38 = 107,259.45/x
  3. Step 3: Cross multiply
    191,739.87x = 287,095.38 × 107,259.45
  4. Step 4: Simplify right side
    191,739.87x = 30,793,692,556.34
  5. Step 5: Solve for x
    x = 30,793,692,556.34/191,739.87
  6. Step 6: Final answer
    x = 160,601.41

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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.