Home / 191,629.53-287,478.92-79,248.71

Finding the Fourth Proportional to 191,629.53, 287,478.92 and 79,248.71

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Solution

The fourth proportional to 191,629.53, 287,478.92 and 79,248.71 is: 118,887.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,629.53 : 287,478.92 = 79,248.71 : x
  2. Step 2: Convert to fraction form
    191,629.53/287,478.92 = 79,248.71/x
  3. Step 3: Cross multiply
    191,629.53x = 287,478.92 × 79,248.71
  4. Step 4: Simplify right side
    191,629.53x = 22,782,334,479.01
  5. Step 5: Solve for x
    x = 22,782,334,479.01/191,629.53
  6. Step 6: Final answer
    x = 118,887.39

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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.