Home / 219,151.16-328,599.96-85,875.38

Finding the Fourth Proportional to 219,151.16, 328,599.96 and 85,875.38

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Solution

The fourth proportional to 219,151.16, 328,599.96 and 85,875.38 is: 128,763.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,151.16 : 328,599.96 = 85,875.38 : x
  2. Step 2: Convert to fraction form
    219,151.16/328,599.96 = 85,875.38/x
  3. Step 3: Cross multiply
    219,151.16x = 328,599.96 × 85,875.38
  4. Step 4: Simplify right side
    219,151.16x = 28,218,646,432.98
  5. Step 5: Solve for x
    x = 28,218,646,432.98/219,151.16
  6. Step 6: Final answer
    x = 128,763.39

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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.