Home / 219,686.10-303,164.55-122,888.70

Finding the Fourth Proportional to 219,686.10, 303,164.55 and 122,888.70

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Solution

The fourth proportional to 219,686.10, 303,164.55 and 122,888.70 is: 169,585.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,686.10 : 303,164.55 = 122,888.70 : x
  2. Step 2: Convert to fraction form
    219,686.10/303,164.55 = 122,888.70/x
  3. Step 3: Cross multiply
    219,686.10x = 303,164.55 × 122,888.70
  4. Step 4: Simplify right side
    219,686.10x = 37,255,497,435.59
  5. Step 5: Solve for x
    x = 37,255,497,435.59/219,686.10
  6. Step 6: Final answer
    x = 169,585.14

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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.