Home / 156,555.36-216,046.47-84,935.37

Finding the Fourth Proportional to 156,555.36, 216,046.47 and 84,935.37

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Solution

The fourth proportional to 156,555.36, 216,046.47 and 84,935.37 is: 117,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,555.36 : 216,046.47 = 84,935.37 : x
  2. Step 2: Convert to fraction form
    156,555.36/216,046.47 = 84,935.37/x
  3. Step 3: Cross multiply
    156,555.36x = 216,046.47 × 84,935.37
  4. Step 4: Simplify right side
    156,555.36x = 18,349,986,866.64
  5. Step 5: Solve for x
    x = 18,349,986,866.64/156,555.36
  6. Step 6: Final answer
    x = 117,210.85

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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.