Home / 219,128.29-328,544.12-85,925.41

Finding the Fourth Proportional to 219,128.29, 328,544.12 and 85,925.41

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Solution

The fourth proportional to 219,128.29, 328,544.12 and 85,925.41 is: 128,829.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,128.29 : 328,544.12 = 85,925.41 : x
  2. Step 2: Convert to fraction form
    219,128.29/328,544.12 = 85,925.41/x
  3. Step 3: Cross multiply
    219,128.29x = 328,544.12 × 85,925.41
  4. Step 4: Simplify right side
    219,128.29x = 28,230,287,784.46
  5. Step 5: Solve for x
    x = 28,230,287,784.46/219,128.29
  6. Step 6: Final answer
    x = 128,829.96

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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.