Home / 156,955.80-235,228.90-72,706.20

Finding the Fourth Proportional to 156,955.80, 235,228.90 and 72,706.20

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Solution

The fourth proportional to 156,955.80, 235,228.90 and 72,706.20 is: 108,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,955.80 : 235,228.90 = 72,706.20 : x
  2. Step 2: Convert to fraction form
    156,955.80/235,228.90 = 72,706.20/x
  3. Step 3: Cross multiply
    156,955.80x = 235,228.90 × 72,706.20
  4. Step 4: Simplify right side
    156,955.80x = 17,102,599,449.18
  5. Step 5: Solve for x
    x = 17,102,599,449.18/156,955.80
  6. Step 6: Final answer
    x = 108,964.43

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1.5x scale

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.