Home / 156,304.54-215,699.97-84,686.50

Finding the Fourth Proportional to 156,304.54, 215,699.97 and 84,686.50

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Solution

The fourth proportional to 156,304.54, 215,699.97 and 84,686.50 is: 116,867.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,304.54 : 215,699.97 = 84,686.50 : x
  2. Step 2: Convert to fraction form
    156,304.54/215,699.97 = 84,686.50/x
  3. Step 3: Cross multiply
    156,304.54x = 215,699.97 × 84,686.50
  4. Step 4: Simplify right side
    156,304.54x = 18,266,875,509.41
  5. Step 5: Solve for x
    x = 18,266,875,509.41/156,304.54
  6. Step 6: Final answer
    x = 116,867.21

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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.