Home / 163,619.80-245,429.70-156,621.40

Finding the Fourth Proportional to 163,619.80, 245,429.70 and 156,621.40

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Solution

The fourth proportional to 163,619.80, 245,429.70 and 156,621.40 is: 234,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,619.80 : 245,429.70 = 156,621.40 : x
  2. Step 2: Convert to fraction form
    163,619.80/245,429.70 = 156,621.40/x
  3. Step 3: Cross multiply
    163,619.80x = 245,429.70 × 156,621.40
  4. Step 4: Simplify right side
    163,619.80x = 38,439,543,215.58
  5. Step 5: Solve for x
    x = 38,439,543,215.58/163,619.80
  6. Step 6: Final answer
    x = 234,932.10

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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.