Home / 153,528.45-230,292.90-78,607.76

Finding the Fourth Proportional to 153,528.45, 230,292.90 and 78,607.76

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Solution

The fourth proportional to 153,528.45, 230,292.90 and 78,607.76 is: 117,911.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,528.45 : 230,292.90 = 78,607.76 : x
  2. Step 2: Convert to fraction form
    153,528.45/230,292.90 = 78,607.76/x
  3. Step 3: Cross multiply
    153,528.45x = 230,292.90 × 78,607.76
  4. Step 4: Simplify right side
    153,528.45x = 18,102,807,861.44
  5. Step 5: Solve for x
    x = 18,102,807,861.44/153,528.45
  6. Step 6: Final answer
    x = 117,911.75

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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.