Home / 156,954.70-235,561.65-72,844.30

Finding the Fourth Proportional to 156,954.70, 235,561.65 and 72,844.30

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Solution

The fourth proportional to 156,954.70, 235,561.65 and 72,844.30 is: 109,326.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,954.70 : 235,561.65 = 72,844.30 : x
  2. Step 2: Convert to fraction form
    156,954.70/235,561.65 = 72,844.30/x
  3. Step 3: Cross multiply
    156,954.70x = 235,561.65 × 72,844.30
  4. Step 4: Simplify right side
    156,954.70x = 17,159,323,501.10
  5. Step 5: Solve for x
    x = 17,159,323,501.10/156,954.70
  6. Step 6: Final answer
    x = 109,326.60

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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.