Home / 154,445.28-213,124.59-86,450.82

Finding the Fourth Proportional to 154,445.28, 213,124.59 and 86,450.82

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Solution

The fourth proportional to 154,445.28, 213,124.59 and 86,450.82 is: 119,296.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,445.28 : 213,124.59 = 86,450.82 : x
  2. Step 2: Convert to fraction form
    154,445.28/213,124.59 = 86,450.82/x
  3. Step 3: Cross multiply
    154,445.28x = 213,124.59 × 86,450.82
  4. Step 4: Simplify right side
    154,445.28x = 18,424,795,567.66
  5. Step 5: Solve for x
    x = 18,424,795,567.66/154,445.28
  6. Step 6: Final answer
    x = 119,296.59

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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.