Home / 156,299.54-215,693.06-84,681.50

Finding the Fourth Proportional to 156,299.54, 215,693.06 and 84,681.50

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Solution

The fourth proportional to 156,299.54, 215,693.06 and 84,681.50 is: 116,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,299.54 : 215,693.06 = 84,681.50 : x
  2. Step 2: Convert to fraction form
    156,299.54/215,693.06 = 84,681.50/x
  3. Step 3: Cross multiply
    156,299.54x = 215,693.06 × 84,681.50
  4. Step 4: Simplify right side
    156,299.54x = 18,265,211,860.39
  5. Step 5: Solve for x
    x = 18,265,211,860.39/156,299.54
  6. Step 6: Final answer
    x = 116,860.30

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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.