Home / 156,259.36-215,637.82-84,639.21

Finding the Fourth Proportional to 156,259.36, 215,637.82 and 84,639.21

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Solution

The fourth proportional to 156,259.36, 215,637.82 and 84,639.21 is: 116,802.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,259.36 : 215,637.82 = 84,639.21 : x
  2. Step 2: Convert to fraction form
    156,259.36/215,637.82 = 84,639.21/x
  3. Step 3: Cross multiply
    156,259.36x = 215,637.82 × 84,639.21
  4. Step 4: Simplify right side
    156,259.36x = 18,251,414,730.92
  5. Step 5: Solve for x
    x = 18,251,414,730.92/156,259.36
  6. Step 6: Final answer
    x = 116,802.06

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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.