Home / 152,664.80-210,678-84,688.04

Finding the Fourth Proportional to 152,664.80, 210,678 and 84,688.04

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Solution

The fourth proportional to 152,664.80, 210,678 and 84,688.04 is: 116,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,664.80 : 210,678 = 84,688.04 : x
  2. Step 2: Convert to fraction form
    152,664.80/210,678 = 84,688.04/x
  3. Step 3: Cross multiply
    152,664.80x = 210,678 × 84,688.04
  4. Step 4: Simplify right side
    152,664.80x = 17,841,906,891.12
  5. Step 5: Solve for x
    x = 17,841,906,891.12/152,664.80
  6. Step 6: Final answer
    x = 116,869.81

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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.