Home / 154,043.98-212,590.67-86,061.32

Finding the Fourth Proportional to 154,043.98, 212,590.67 and 86,061.32

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Solution

The fourth proportional to 154,043.98, 212,590.67 and 86,061.32 is: 118,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,043.98 : 212,590.67 = 86,061.32 : x
  2. Step 2: Convert to fraction form
    154,043.98/212,590.67 = 86,061.32/x
  3. Step 3: Cross multiply
    154,043.98x = 212,590.67 × 86,061.32
  4. Step 4: Simplify right side
    154,043.98x = 18,295,833,679.88
  5. Step 5: Solve for x
    x = 18,295,833,679.88/154,043.98
  6. Step 6: Final answer
    x = 118,770.20

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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.