Home / 156,432.08-215,875.59-84,811.88

Finding the Fourth Proportional to 156,432.08, 215,875.59 and 84,811.88

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Solution

The fourth proportional to 156,432.08, 215,875.59 and 84,811.88 is: 117,040.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,432.08 : 215,875.59 = 84,811.88 : x
  2. Step 2: Convert to fraction form
    156,432.08/215,875.59 = 84,811.88/x
  3. Step 3: Cross multiply
    156,432.08x = 215,875.59 × 84,811.88
  4. Step 4: Simplify right side
    156,432.08x = 18,308,814,634.01
  5. Step 5: Solve for x
    x = 18,308,814,634.01/156,432.08
  6. Step 6: Final answer
    x = 117,040.03

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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.