Home / 97,416.20-146,124.30-86,590.55

Finding the Fourth Proportional to 97,416.20, 146,124.30 and 86,590.55

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Solution

The fourth proportional to 97,416.20, 146,124.30 and 86,590.55 is: 129,885.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,416.20 : 146,124.30 = 86,590.55 : x
  2. Step 2: Convert to fraction form
    97,416.20/146,124.30 = 86,590.55/x
  3. Step 3: Cross multiply
    97,416.20x = 146,124.30 × 86,590.55
  4. Step 4: Simplify right side
    97,416.20x = 12,652,983,505.37
  5. Step 5: Solve for x
    x = 12,652,983,505.37/97,416.20
  6. Step 6: Final answer
    x = 129,885.83

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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.