Home / 156,918.32-235,194.96-72,501.20

Finding the Fourth Proportional to 156,918.32, 235,194.96 and 72,501.20

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Solution

The fourth proportional to 156,918.32, 235,194.96 and 72,501.20 is: 108,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,918.32 : 235,194.96 = 72,501.20 : x
  2. Step 2: Convert to fraction form
    156,918.32/235,194.96 = 72,501.20/x
  3. Step 3: Cross multiply
    156,918.32x = 235,194.96 × 72,501.20
  4. Step 4: Simplify right side
    156,918.32x = 17,051,916,833.95
  5. Step 5: Solve for x
    x = 17,051,916,833.95/156,918.32
  6. Step 6: Final answer
    x = 108,667.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.