Home / 158,301.22-218,460.63-86,688.04

Finding the Fourth Proportional to 158,301.22, 218,460.63 and 86,688.04

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Solution

The fourth proportional to 158,301.22, 218,460.63 and 86,688.04 is: 119,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,301.22 : 218,460.63 = 86,688.04 : x
  2. Step 2: Convert to fraction form
    158,301.22/218,460.63 = 86,688.04/x
  3. Step 3: Cross multiply
    158,301.22x = 218,460.63 × 86,688.04
  4. Step 4: Simplify right side
    158,301.22x = 18,937,923,831.87
  5. Step 5: Solve for x
    x = 18,937,923,831.87/158,301.22
  6. Step 6: Final answer
    x = 119,632.20

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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.