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Finding the Fourth Proportional to 158,527.62, 218,762.31 and 86,906.07

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Solution

The fourth proportional to 158,527.62, 218,762.31 and 86,906.07 is: 119,927.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,527.62 : 218,762.31 = 86,906.07 : x
  2. Step 2: Convert to fraction form
    158,527.62/218,762.31 = 86,906.07/x
  3. Step 3: Cross multiply
    158,527.62x = 218,762.31 × 86,906.07
  4. Step 4: Simplify right side
    158,527.62x = 19,011,772,626.22
  5. Step 5: Solve for x
    x = 19,011,772,626.22/158,527.62
  6. Step 6: Final answer
    x = 119,927.19

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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.