Home / 219,700.49-303,183.93-129,064.71

Finding the Fourth Proportional to 219,700.49, 303,183.93 and 129,064.71

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Solution

The fourth proportional to 219,700.49, 303,183.93 and 129,064.71 is: 178,107.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,700.49 : 303,183.93 = 129,064.71 : x
  2. Step 2: Convert to fraction form
    219,700.49/303,183.93 = 129,064.71/x
  3. Step 3: Cross multiply
    219,700.49x = 303,183.93 × 129,064.71
  4. Step 4: Simplify right side
    219,700.49x = 39,130,345,191.64
  5. Step 5: Solve for x
    x = 39,130,345,191.64/219,700.49
  6. Step 6: Final answer
    x = 178,107.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.