Home / 128,575.02-192,692.43-93,155.34

Finding the Fourth Proportional to 128,575.02, 192,692.43 and 93,155.34

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Solution

The fourth proportional to 128,575.02, 192,692.43 and 93,155.34 is: 139,609.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,575.02 : 192,692.43 = 93,155.34 : x
  2. Step 2: Convert to fraction form
    128,575.02/192,692.43 = 93,155.34/x
  3. Step 3: Cross multiply
    128,575.02x = 192,692.43 × 93,155.34
  4. Step 4: Simplify right side
    128,575.02x = 17,950,328,832.08
  5. Step 5: Solve for x
    x = 17,950,328,832.08/128,575.02
  6. Step 6: Final answer
    x = 139,609.77

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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.