Home / 140,075.13-193,303.68-76,413.18

Finding the Fourth Proportional to 140,075.13, 193,303.68 and 76,413.18

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Solution

The fourth proportional to 140,075.13, 193,303.68 and 76,413.18 is: 105,450.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,075.13 : 193,303.68 = 76,413.18 : x
  2. Step 2: Convert to fraction form
    140,075.13/193,303.68 = 76,413.18/x
  3. Step 3: Cross multiply
    140,075.13x = 193,303.68 × 76,413.18
  4. Step 4: Simplify right side
    140,075.13x = 14,770,948,894.50
  5. Step 5: Solve for x
    x = 14,770,948,894.50/140,075.13
  6. Step 6: Final answer
    x = 105,450.19

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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.