Home / 219,070.08-328,663.44-69,313.20

Finding the Fourth Proportional to 219,070.08, 328,663.44 and 69,313.20

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Solution

The fourth proportional to 219,070.08, 328,663.44 and 69,313.20 is: 103,988.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,070.08 : 328,663.44 = 69,313.20 : x
  2. Step 2: Convert to fraction form
    219,070.08/328,663.44 = 69,313.20/x
  3. Step 3: Cross multiply
    219,070.08x = 328,663.44 × 69,313.20
  4. Step 4: Simplify right side
    219,070.08x = 22,780,714,749.41
  5. Step 5: Solve for x
    x = 22,780,714,749.41/219,070.08
  6. Step 6: Final answer
    x = 103,988.25

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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.