Home / 171,036.90-236,014.56-99,420.48

Finding the Fourth Proportional to 171,036.90, 236,014.56 and 99,420.48

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Solution

The fourth proportional to 171,036.90, 236,014.56 and 99,420.48 is: 137,190.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,036.90 : 236,014.56 = 99,420.48 : x
  2. Step 2: Convert to fraction form
    171,036.90/236,014.56 = 99,420.48/x
  3. Step 3: Cross multiply
    171,036.90x = 236,014.56 × 99,420.48
  4. Step 4: Simplify right side
    171,036.90x = 23,464,680,842.19
  5. Step 5: Solve for x
    x = 23,464,680,842.19/171,036.90
  6. Step 6: Final answer
    x = 137,190.75

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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.