Home / 146,431.04-202,020-86,003.60

Finding the Fourth Proportional to 146,431.04, 202,020 and 86,003.60

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Solution

The fourth proportional to 146,431.04, 202,020 and 86,003.60 is: 118,652.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,431.04 : 202,020 = 86,003.60 : x
  2. Step 2: Convert to fraction form
    146,431.04/202,020 = 86,003.60/x
  3. Step 3: Cross multiply
    146,431.04x = 202,020 × 86,003.60
  4. Step 4: Simplify right side
    146,431.04x = 17,374,447,272
  5. Step 5: Solve for x
    x = 17,374,447,272/146,431.04
  6. Step 6: Final answer
    x = 118,652.76

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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.