Home / 154,557.40-213,297.23-86,570.40

Finding the Fourth Proportional to 154,557.40, 213,297.23 and 86,570.40

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Solution

The fourth proportional to 154,557.40, 213,297.23 and 86,570.40 is: 119,471.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,557.40 : 213,297.23 = 86,570.40 : x
  2. Step 2: Convert to fraction form
    154,557.40/213,297.23 = 86,570.40/x
  3. Step 3: Cross multiply
    154,557.40x = 213,297.23 × 86,570.40
  4. Step 4: Simplify right side
    154,557.40x = 18,465,226,519.99
  5. Step 5: Solve for x
    x = 18,465,226,519.99/154,557.40
  6. Step 6: Final answer
    x = 119,471.64

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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.