Home / 105,064.22-144,988.58-57,317.90

Finding the Fourth Proportional to 105,064.22, 144,988.58 and 57,317.90

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Solution

The fourth proportional to 105,064.22, 144,988.58 and 57,317.90 is: 79,098.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,064.22 : 144,988.58 = 57,317.90 : x
  2. Step 2: Convert to fraction form
    105,064.22/144,988.58 = 57,317.90/x
  3. Step 3: Cross multiply
    105,064.22x = 144,988.58 × 57,317.90
  4. Step 4: Simplify right side
    105,064.22x = 8,310,440,347.93
  5. Step 5: Solve for x
    x = 8,310,440,347.93/105,064.22
  6. Step 6: Final answer
    x = 79,098.67

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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.