Home / 228,153.30-342,253.42-86,118.21

Finding the Fourth Proportional to 228,153.30, 342,253.42 and 86,118.21

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Solution

The fourth proportional to 228,153.30, 342,253.42 and 86,118.21 is: 129,186.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,153.30 : 342,253.42 = 86,118.21 : x
  2. Step 2: Convert to fraction form
    228,153.30/342,253.42 = 86,118.21/x
  3. Step 3: Cross multiply
    228,153.30x = 342,253.42 × 86,118.21
  4. Step 4: Simplify right side
    228,153.30x = 29,474,251,681.48
  5. Step 5: Solve for x
    x = 29,474,251,681.48/228,153.30
  6. Step 6: Final answer
    x = 129,186.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.