Home / 156,741.70-235,242.15-72,631.30

Finding the Fourth Proportional to 156,741.70, 235,242.15 and 72,631.30

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Solution

The fourth proportional to 156,741.70, 235,242.15 and 72,631.30 is: 109,007.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,741.70 : 235,242.15 = 72,631.30 : x
  2. Step 2: Convert to fraction form
    156,741.70/235,242.15 = 72,631.30/x
  3. Step 3: Cross multiply
    156,741.70x = 235,242.15 × 72,631.30
  4. Step 4: Simplify right side
    156,741.70x = 17,085,943,169.30
  5. Step 5: Solve for x
    x = 17,085,943,169.30/156,741.70
  6. Step 6: Final answer
    x = 109,007.00

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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.