Home / 145,324.09-200,566.05-81,661.89

Finding the Fourth Proportional to 145,324.09, 200,566.05 and 81,661.89

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Solution

The fourth proportional to 145,324.09, 200,566.05 and 81,661.89 is: 112,703.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,324.09 : 200,566.05 = 81,661.89 : x
  2. Step 2: Convert to fraction form
    145,324.09/200,566.05 = 81,661.89/x
  3. Step 3: Cross multiply
    145,324.09x = 200,566.05 × 81,661.89
  4. Step 4: Simplify right side
    145,324.09x = 16,378,602,712.83
  5. Step 5: Solve for x
    x = 16,378,602,712.83/145,324.09
  6. Step 6: Final answer
    x = 112,703.98

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