Home / 143,153.11-197,511.37-89,492.77

Finding the Fourth Proportional to 143,153.11, 197,511.37 and 89,492.77

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Solution

The fourth proportional to 143,153.11, 197,511.37 and 89,492.77 is: 123,475.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,153.11 : 197,511.37 = 89,492.77 : x
  2. Step 2: Convert to fraction form
    143,153.11/197,511.37 = 89,492.77/x
  3. Step 3: Cross multiply
    143,153.11x = 197,511.37 × 89,492.77
  4. Step 4: Simplify right side
    143,153.11x = 17,675,839,607.79
  5. Step 5: Solve for x
    x = 17,675,839,607.79/143,153.11
  6. Step 6: Final answer
    x = 123,475.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.