Home / 155,916.90-215,165.30-84,296.92

Finding the Fourth Proportional to 155,916.90, 215,165.30 and 84,296.92

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Solution

The fourth proportional to 155,916.90, 215,165.30 and 84,296.92 is: 116,329.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,916.90 : 215,165.30 = 84,296.92 : x
  2. Step 2: Convert to fraction form
    155,916.90/215,165.30 = 84,296.92/x
  3. Step 3: Cross multiply
    155,916.90x = 215,165.30 × 84,296.92
  4. Step 4: Simplify right side
    155,916.90x = 18,137,772,080.88
  5. Step 5: Solve for x
    x = 18,137,772,080.88/155,916.90
  6. Step 6: Final answer
    x = 116,329.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.