Home / 154,450.51-213,129.93-86,451.91

Finding the Fourth Proportional to 154,450.51, 213,129.93 and 86,451.91

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Solution

The fourth proportional to 154,450.51, 213,129.93 and 86,451.91 is: 119,297.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,450.51 : 213,129.93 = 86,451.91 : x
  2. Step 2: Convert to fraction form
    154,450.51/213,129.93 = 86,451.91/x
  3. Step 3: Cross multiply
    154,450.51x = 213,129.93 × 86,451.91
  4. Step 4: Simplify right side
    154,450.51x = 18,425,489,526.67
  5. Step 5: Solve for x
    x = 18,425,489,526.67/154,450.51
  6. Step 6: Final answer
    x = 119,297.05

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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.