Home / 154,530.04-213,233.80-86,537.56

Finding the Fourth Proportional to 154,530.04, 213,233.80 and 86,537.56

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Solution

The fourth proportional to 154,530.04, 213,233.80 and 86,537.56 is: 119,411.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,530.04 : 213,233.80 = 86,537.56 : x
  2. Step 2: Convert to fraction form
    154,530.04/213,233.80 = 86,537.56/x
  3. Step 3: Cross multiply
    154,530.04x = 213,233.80 × 86,537.56
  4. Step 4: Simplify right side
    154,530.04x = 18,452,732,761.53
  5. Step 5: Solve for x
    x = 18,452,732,761.53/154,530.04
  6. Step 6: Final answer
    x = 119,411.95

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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.