Home / 156,289.50-215,679.60-84,670.02

Finding the Fourth Proportional to 156,289.50, 215,679.60 and 84,670.02

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Solution

The fourth proportional to 156,289.50, 215,679.60 and 84,670.02 is: 116,844.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,289.50 : 215,679.60 = 84,670.02 : x
  2. Step 2: Convert to fraction form
    156,289.50/215,679.60 = 84,670.02/x
  3. Step 3: Cross multiply
    156,289.50x = 215,679.60 × 84,670.02
  4. Step 4: Simplify right side
    156,289.50x = 18,261,596,045.59
  5. Step 5: Solve for x
    x = 18,261,596,045.59/156,289.50
  6. Step 6: Final answer
    x = 116,844.68

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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.