Home / 154,000.27-212,518.11-86,018.19

Finding the Fourth Proportional to 154,000.27, 212,518.11 and 86,018.19

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Solution

The fourth proportional to 154,000.27, 212,518.11 and 86,018.19 is: 118,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,000.27 : 212,518.11 = 86,018.19 : x
  2. Step 2: Convert to fraction form
    154,000.27/212,518.11 = 86,018.19/x
  3. Step 3: Cross multiply
    154,000.27x = 212,518.11 × 86,018.19
  4. Step 4: Simplify right side
    154,000.27x = 18,280,423,265.63
  5. Step 5: Solve for x
    x = 18,280,423,265.63/154,000.27
  6. Step 6: Final answer
    x = 118,703.84

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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.