Home / 356,128.50-534,220.42-103,413.16

Finding the Fourth Proportional to 356,128.50, 534,220.42 and 103,413.16

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Solution

The fourth proportional to 356,128.50, 534,220.42 and 103,413.16 is: 155,127.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,128.50 : 534,220.42 = 103,413.16 : x
  2. Step 2: Convert to fraction form
    356,128.50/534,220.42 = 103,413.16/x
  3. Step 3: Cross multiply
    356,128.50x = 534,220.42 × 103,413.16
  4. Step 4: Simplify right side
    356,128.50x = 55,245,421,768.73
  5. Step 5: Solve for x
    x = 55,245,421,768.73/356,128.50
  6. Step 6: Final answer
    x = 155,127.77

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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.