Home / 213,815.40-295,061.04-118,326.12

Finding the Fourth Proportional to 213,815.40, 295,061.04 and 118,326.12

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Solution

The fourth proportional to 213,815.40, 295,061.04 and 118,326.12 is: 163,287.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,815.40 : 295,061.04 = 118,326.12 : x
  2. Step 2: Convert to fraction form
    213,815.40/295,061.04 = 118,326.12/x
  3. Step 3: Cross multiply
    213,815.40x = 295,061.04 × 118,326.12
  4. Step 4: Simplify right side
    213,815.40x = 34,913,428,026.36
  5. Step 5: Solve for x
    x = 34,913,428,026.36/213,815.40
  6. Step 6: Final answer
    x = 163,287.71

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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.