Home / 126,368,117.80-189,552,176.70-82,530,140.20

Finding the Fourth Proportional to 126,368,117.80, 189,552,176.70 and 82,530,140.20

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Solution

The fourth proportional to 126,368,117.80, 189,552,176.70 and 82,530,140.20 is: 123,795,210.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,368,117.80 : 189,552,176.70 = 82,530,140.20 : x
  2. Step 2: Convert to fraction form
    126,368,117.80/189,552,176.70 = 82,530,140.20/x
  3. Step 3: Cross multiply
    126,368,117.80x = 189,552,176.70 × 82,530,140.20
  4. Step 4: Simplify right side
    126,368,117.80x = 15,643,767,718,266,172
  5. Step 5: Solve for x
    x = 15,643,767,718,266,172/126,368,117.80
  6. Step 6: Final answer
    x = 123,795,210.30

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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.