Home / 153,743.75-212,166.42-86,675.75

Finding the Fourth Proportional to 153,743.75, 212,166.42 and 86,675.75

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Solution

The fourth proportional to 153,743.75, 212,166.42 and 86,675.75 is: 119,612.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,743.75 : 212,166.42 = 86,675.75 : x
  2. Step 2: Convert to fraction form
    153,743.75/212,166.42 = 86,675.75/x
  3. Step 3: Cross multiply
    153,743.75x = 212,166.42 × 86,675.75
  4. Step 4: Simplify right side
    153,743.75x = 18,389,683,578.32
  5. Step 5: Solve for x
    x = 18,389,683,578.32/153,743.75
  6. Step 6: Final answer
    x = 119,612.56

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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.