Home / 148,036.18-204,242-90,615.68

Finding the Fourth Proportional to 148,036.18, 204,242 and 90,615.68

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Solution

The fourth proportional to 148,036.18, 204,242 and 90,615.68 is: 125,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,036.18 : 204,242 = 90,615.68 : x
  2. Step 2: Convert to fraction form
    148,036.18/204,242 = 90,615.68/x
  3. Step 3: Cross multiply
    148,036.18x = 204,242 × 90,615.68
  4. Step 4: Simplify right side
    148,036.18x = 18,507,527,714.56
  5. Step 5: Solve for x
    x = 18,507,527,714.56/148,036.18
  6. Step 6: Final answer
    x = 125,020.30

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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.