Home / 158,228.73-218,353.75-85,629.93

Finding the Fourth Proportional to 158,228.73, 218,353.75 and 85,629.93

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Solution

The fourth proportional to 158,228.73, 218,353.75 and 85,629.93 is: 118,168.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,228.73 : 218,353.75 = 85,629.93 : x
  2. Step 2: Convert to fraction form
    158,228.73/218,353.75 = 85,629.93/x
  3. Step 3: Cross multiply
    158,228.73x = 218,353.75 × 85,629.93
  4. Step 4: Simplify right side
    158,228.73x = 18,697,615,899.59
  5. Step 5: Solve for x
    x = 18,697,615,899.59/158,228.73
  6. Step 6: Final answer
    x = 118,168.27

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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.