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Finding the Fourth Proportional to 130,012.68, 179,404.74 and 73,413.12

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Solution

The fourth proportional to 130,012.68, 179,404.74 and 73,413.12 is: 101,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,012.68 : 179,404.74 = 73,413.12 : x
  2. Step 2: Convert to fraction form
    130,012.68/179,404.74 = 73,413.12/x
  3. Step 3: Cross multiply
    130,012.68x = 179,404.74 × 73,413.12
  4. Step 4: Simplify right side
    130,012.68x = 13,170,661,706.19
  5. Step 5: Solve for x
    x = 13,170,661,706.19/130,012.68
  6. Step 6: Final answer
    x = 101,302.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.