Home / 154,593.55-213,345.19-86,611.06

Finding the Fourth Proportional to 154,593.55, 213,345.19 and 86,611.06

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Solution

The fourth proportional to 154,593.55, 213,345.19 and 86,611.06 is: 119,526.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,593.55 : 213,345.19 = 86,611.06 : x
  2. Step 2: Convert to fraction form
    154,593.55/213,345.19 = 86,611.06/x
  3. Step 3: Cross multiply
    154,593.55x = 213,345.19 × 86,611.06
  4. Step 4: Simplify right side
    154,593.55x = 18,478,053,051.80
  5. Step 5: Solve for x
    x = 18,478,053,051.80/154,593.55
  6. Step 6: Final answer
    x = 119,526.68

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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.