Home / 158,222.53-218,345.24-85,623.73

Finding the Fourth Proportional to 158,222.53, 218,345.24 and 85,623.73

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Solution

The fourth proportional to 158,222.53, 218,345.24 and 85,623.73 is: 118,159.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,222.53 : 218,345.24 = 85,623.73 : x
  2. Step 2: Convert to fraction form
    158,222.53/218,345.24 = 85,623.73/x
  3. Step 3: Cross multiply
    158,222.53x = 218,345.24 × 85,623.73
  4. Step 4: Simplify right side
    158,222.53x = 18,695,533,994.29
  5. Step 5: Solve for x
    x = 18,695,533,994.29/158,222.53
  6. Step 6: Final answer
    x = 118,159.75

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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.