Home / 146,686.40-220,029.60-99,447.20

Finding the Fourth Proportional to 146,686.40, 220,029.60 and 99,447.20

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Solution

The fourth proportional to 146,686.40, 220,029.60 and 99,447.20 is: 149,170.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,686.40 : 220,029.60 = 99,447.20 : x
  2. Step 2: Convert to fraction form
    146,686.40/220,029.60 = 99,447.20/x
  3. Step 3: Cross multiply
    146,686.40x = 220,029.60 × 99,447.20
  4. Step 4: Simplify right side
    146,686.40x = 21,881,327,637.12
  5. Step 5: Solve for x
    x = 21,881,327,637.12/146,686.40
  6. Step 6: Final answer
    x = 149,170.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.