Home / 129,413.46-194,128.56-40,670.67

Finding the Fourth Proportional to 129,413.46, 194,128.56 and 40,670.67

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Solution

The fourth proportional to 129,413.46, 194,128.56 and 40,670.67 is: 61,008.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,413.46 : 194,128.56 = 40,670.67 : x
  2. Step 2: Convert to fraction form
    129,413.46/194,128.56 = 40,670.67/x
  3. Step 3: Cross multiply
    129,413.46x = 194,128.56 × 40,670.67
  4. Step 4: Simplify right side
    129,413.46x = 7,895,338,601.34
  5. Step 5: Solve for x
    x = 7,895,338,601.34/129,413.46
  6. Step 6: Final answer
    x = 61,008.64

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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.