Home / 154,458.03-213,127.38-86,477.85

Finding the Fourth Proportional to 154,458.03, 213,127.38 and 86,477.85

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Solution

The fourth proportional to 154,458.03, 213,127.38 and 86,477.85 is: 119,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,458.03 : 213,127.38 = 86,477.85 : x
  2. Step 2: Convert to fraction form
    154,458.03/213,127.38 = 86,477.85/x
  3. Step 3: Cross multiply
    154,458.03x = 213,127.38 × 86,477.85
  4. Step 4: Simplify right side
    154,458.03x = 18,430,797,598.53
  5. Step 5: Solve for x
    x = 18,430,797,598.53/154,458.03
  6. Step 6: Final answer
    x = 119,325.60

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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.