Home / 219,120.86-328,730.46-69,370.10

Finding the Fourth Proportional to 219,120.86, 328,730.46 and 69,370.10

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Solution

The fourth proportional to 219,120.86, 328,730.46 and 69,370.10 is: 104,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,120.86 : 328,730.46 = 69,370.10 : x
  2. Step 2: Convert to fraction form
    219,120.86/328,730.46 = 69,370.10/x
  3. Step 3: Cross multiply
    219,120.86x = 328,730.46 × 69,370.10
  4. Step 4: Simplify right side
    219,120.86x = 22,804,064,883.25
  5. Step 5: Solve for x
    x = 22,804,064,883.25/219,120.86
  6. Step 6: Final answer
    x = 104,070.72

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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.