Home / 248,106.79-342,380.05-140,686.63

Finding the Fourth Proportional to 248,106.79, 342,380.05 and 140,686.63

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Solution

The fourth proportional to 248,106.79, 342,380.05 and 140,686.63 is: 194,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,106.79 : 342,380.05 = 140,686.63 : x
  2. Step 2: Convert to fraction form
    248,106.79/342,380.05 = 140,686.63/x
  3. Step 3: Cross multiply
    248,106.79x = 342,380.05 × 140,686.63
  4. Step 4: Simplify right side
    248,106.79x = 48,168,295,413.73
  5. Step 5: Solve for x
    x = 48,168,295,413.73/248,106.79
  6. Step 6: Final answer
    x = 194,143.40

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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.