Home / 154,300.98-212,925.30-86,306.16

Finding the Fourth Proportional to 154,300.98, 212,925.30 and 86,306.16

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Solution

The fourth proportional to 154,300.98, 212,925.30 and 86,306.16 is: 119,096.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,300.98 : 212,925.30 = 86,306.16 : x
  2. Step 2: Convert to fraction form
    154,300.98/212,925.30 = 86,306.16/x
  3. Step 3: Cross multiply
    154,300.98x = 212,925.30 × 86,306.16
  4. Step 4: Simplify right side
    154,300.98x = 18,376,765,009.85
  5. Step 5: Solve for x
    x = 18,376,765,009.85/154,300.98
  6. Step 6: Final answer
    x = 119,096.88

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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.