Home / 213,981.14-295,290.36-118,485.78

Finding the Fourth Proportional to 213,981.14, 295,290.36 and 118,485.78

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Solution

The fourth proportional to 213,981.14, 295,290.36 and 118,485.78 is: 163,508.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,981.14 : 295,290.36 = 118,485.78 : x
  2. Step 2: Convert to fraction form
    213,981.14/295,290.36 = 118,485.78/x
  3. Step 3: Cross multiply
    213,981.14x = 295,290.36 × 118,485.78
  4. Step 4: Simplify right side
    213,981.14x = 34,987,708,631.08
  5. Step 5: Solve for x
    x = 34,987,708,631.08/213,981.14
  6. Step 6: Final answer
    x = 163,508.38

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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.