Home / 185,434.75-278,379.20-122,307.67

Finding the Fourth Proportional to 185,434.75, 278,379.20 and 122,307.67

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Solution

The fourth proportional to 185,434.75, 278,379.20 and 122,307.67 is: 183,611.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,434.75 : 278,379.20 = 122,307.67 : x
  2. Step 2: Convert to fraction form
    185,434.75/278,379.20 = 122,307.67/x
  3. Step 3: Cross multiply
    185,434.75x = 278,379.20 × 122,307.67
  4. Step 4: Simplify right side
    185,434.75x = 34,047,911,328.46
  5. Step 5: Solve for x
    x = 34,047,911,328.46/185,434.75
  6. Step 6: Final answer
    x = 183,611.28

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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.