Home / 158,416.89-218,615.27-86,799.63

Finding the Fourth Proportional to 158,416.89, 218,615.27 and 86,799.63

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Solution

The fourth proportional to 158,416.89, 218,615.27 and 86,799.63 is: 119,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,416.89 : 218,615.27 = 86,799.63 : x
  2. Step 2: Convert to fraction form
    158,416.89/218,615.27 = 86,799.63/x
  3. Step 3: Cross multiply
    158,416.89x = 218,615.27 × 86,799.63
  4. Step 4: Simplify right side
    158,416.89x = 18,975,724,114.35
  5. Step 5: Solve for x
    x = 18,975,724,114.35/158,416.89
  6. Step 6: Final answer
    x = 119,783.47

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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.