Home / 145,569.96-200,890.47-81,910.02

Finding the Fourth Proportional to 145,569.96, 200,890.47 and 81,910.02

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Solution

The fourth proportional to 145,569.96, 200,890.47 and 81,910.02 is: 113,038.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,569.96 : 200,890.47 = 81,910.02 : x
  2. Step 2: Convert to fraction form
    145,569.96/200,890.47 = 81,910.02/x
  3. Step 3: Cross multiply
    145,569.96x = 200,890.47 × 81,910.02
  4. Step 4: Simplify right side
    145,569.96x = 16,454,942,415.51
  5. Step 5: Solve for x
    x = 16,454,942,415.51/145,569.96
  6. Step 6: Final answer
    x = 113,038.04

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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.