Home / 154,002.34-212,520.99-86,020.28

Finding the Fourth Proportional to 154,002.34, 212,520.99 and 86,020.28

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Solution

The fourth proportional to 154,002.34, 212,520.99 and 86,020.28 is: 118,706.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,002.34 : 212,520.99 = 86,020.28 : x
  2. Step 2: Convert to fraction form
    154,002.34/212,520.99 = 86,020.28/x
  3. Step 3: Cross multiply
    154,002.34x = 212,520.99 × 86,020.28
  4. Step 4: Simplify right side
    154,002.34x = 18,281,115,065.68
  5. Step 5: Solve for x
    x = 18,281,115,065.68/154,002.34
  6. Step 6: Final answer
    x = 118,706.74

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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.