Home / 102,669.81-141,682.81-57,348.45

Finding the Fourth Proportional to 102,669.81, 141,682.81 and 57,348.45

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Solution

The fourth proportional to 102,669.81, 141,682.81 and 57,348.45 is: 79,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,669.81 : 141,682.81 = 57,348.45 : x
  2. Step 2: Convert to fraction form
    102,669.81/141,682.81 = 57,348.45/x
  3. Step 3: Cross multiply
    102,669.81x = 141,682.81 × 57,348.45
  4. Step 4: Simplify right side
    102,669.81x = 8,125,289,545.14
  5. Step 5: Solve for x
    x = 8,125,289,545.14/102,669.81
  6. Step 6: Final answer
    x = 79,140.01

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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.