Home / 102,478.20-141,413.24-56,535.08

Finding the Fourth Proportional to 102,478.20, 141,413.24 and 56,535.08

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Solution

The fourth proportional to 102,478.20, 141,413.24 and 56,535.08 is: 78,014.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,478.20 : 141,413.24 = 56,535.08 : x
  2. Step 2: Convert to fraction form
    102,478.20/141,413.24 = 56,535.08/x
  3. Step 3: Cross multiply
    102,478.20x = 141,413.24 × 56,535.08
  4. Step 4: Simplify right side
    102,478.20x = 7,994,808,836.46
  5. Step 5: Solve for x
    x = 7,994,808,836.46/102,478.20
  6. Step 6: Final answer
    x = 78,014.73

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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.