Home / 163,821.72-245,732.40-51,511.76

Finding the Fourth Proportional to 163,821.72, 245,732.40 and 51,511.76

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Solution

The fourth proportional to 163,821.72, 245,732.40 and 51,511.76 is: 77,267.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,821.72 : 245,732.40 = 51,511.76 : x
  2. Step 2: Convert to fraction form
    163,821.72/245,732.40 = 51,511.76/x
  3. Step 3: Cross multiply
    163,821.72x = 245,732.40 × 51,511.76
  4. Step 4: Simplify right side
    163,821.72x = 12,658,108,413.02
  5. Step 5: Solve for x
    x = 12,658,108,413.02/163,821.72
  6. Step 6: Final answer
    x = 77,267.58

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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.