Home / 163,609.20-245,413.80-58,431.60

Finding the Fourth Proportional to 163,609.20, 245,413.80 and 58,431.60

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Solution

The fourth proportional to 163,609.20, 245,413.80 and 58,431.60 is: 87,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,609.20 : 245,413.80 = 58,431.60 : x
  2. Step 2: Convert to fraction form
    163,609.20/245,413.80 = 58,431.60/x
  3. Step 3: Cross multiply
    163,609.20x = 245,413.80 × 58,431.60
  4. Step 4: Simplify right side
    163,609.20x = 14,339,920,996.08
  5. Step 5: Solve for x
    x = 14,339,920,996.08/163,609.20
  6. Step 6: Final answer
    x = 87,647.40

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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.