Home / 105,622.11-145,756.67-57,875.04

Finding the Fourth Proportional to 105,622.11, 145,756.67 and 57,875.04

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Solution

The fourth proportional to 105,622.11, 145,756.67 and 57,875.04 is: 79,866.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,622.11 : 145,756.67 = 57,875.04 : x
  2. Step 2: Convert to fraction form
    105,622.11/145,756.67 = 57,875.04/x
  3. Step 3: Cross multiply
    105,622.11x = 145,756.67 × 57,875.04
  4. Step 4: Simplify right side
    105,622.11x = 8,435,672,817.14
  5. Step 5: Solve for x
    x = 8,435,672,817.14/105,622.11
  6. Step 6: Final answer
    x = 79,866.54

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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.