Home / 99,416.40-149,128.20-29,302.80

Finding the Fourth Proportional to 99,416.40, 149,128.20 and 29,302.80

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Solution

The fourth proportional to 99,416.40, 149,128.20 and 29,302.80 is: 43,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,416.40 : 149,128.20 = 29,302.80 : x
  2. Step 2: Convert to fraction form
    99,416.40/149,128.20 = 29,302.80/x
  3. Step 3: Cross multiply
    99,416.40x = 149,128.20 × 29,302.80
  4. Step 4: Simplify right side
    99,416.40x = 4,369,873,818.96
  5. Step 5: Solve for x
    x = 4,369,873,818.96/99,416.40
  6. Step 6: Final answer
    x = 43,955.26

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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.