Home / 156,285.17-215,673.31-84,665.48

Finding the Fourth Proportional to 156,285.17, 215,673.31 and 84,665.48

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Solution

The fourth proportional to 156,285.17, 215,673.31 and 84,665.48 is: 116,838.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,285.17 : 215,673.31 = 84,665.48 : x
  2. Step 2: Convert to fraction form
    156,285.17/215,673.31 = 84,665.48/x
  3. Step 3: Cross multiply
    156,285.17x = 215,673.31 × 84,665.48
  4. Step 4: Simplify right side
    156,285.17x = 18,260,084,314.34
  5. Step 5: Solve for x
    x = 18,260,084,314.34/156,285.17
  6. Step 6: Final answer
    x = 116,838.24

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1.5x scale

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.