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Finding the Fourth Proportional to 153,888.62, 230,722.32 and 72,790.67

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Solution

The fourth proportional to 153,888.62, 230,722.32 and 72,790.67 is: 109,133.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,888.62 : 230,722.32 = 72,790.67 : x
  2. Step 2: Convert to fraction form
    153,888.62/230,722.32 = 72,790.67/x
  3. Step 3: Cross multiply
    153,888.62x = 230,722.32 × 72,790.67
  4. Step 4: Simplify right side
    153,888.62x = 16,794,433,106.53
  5. Step 5: Solve for x
    x = 16,794,433,106.53/153,888.62
  6. Step 6: Final answer
    x = 109,133.69

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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.