Home / 104,421.40-144,066.46-66,717.72

Finding the Fourth Proportional to 104,421.40, 144,066.46 and 66,717.72

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Solution

The fourth proportional to 104,421.40, 144,066.46 and 66,717.72 is: 92,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,421.40 : 144,066.46 = 66,717.72 : x
  2. Step 2: Convert to fraction form
    104,421.40/144,066.46 = 66,717.72/x
  3. Step 3: Cross multiply
    104,421.40x = 144,066.46 × 66,717.72
  4. Step 4: Simplify right side
    104,421.40x = 9,611,785,739.67
  5. Step 5: Solve for x
    x = 9,611,785,739.67/104,421.40
  6. Step 6: Final answer
    x = 92,048.05

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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.