Home / 158,221.48-218,344.84-85,624.32

Finding the Fourth Proportional to 158,221.48, 218,344.84 and 85,624.32

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Solution

The fourth proportional to 158,221.48, 218,344.84 and 85,624.32 is: 118,161.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,221.48 : 218,344.84 = 85,624.32 : x
  2. Step 2: Convert to fraction form
    158,221.48/218,344.84 = 85,624.32/x
  3. Step 3: Cross multiply
    158,221.48x = 218,344.84 × 85,624.32
  4. Step 4: Simplify right side
    158,221.48x = 18,695,628,450.51
  5. Step 5: Solve for x
    x = 18,695,628,450.51/158,221.48
  6. Step 6: Final answer
    x = 118,161.13

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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.