Home / 105,453.63-145,526.03-57,706.98

Finding the Fourth Proportional to 105,453.63, 145,526.03 and 57,706.98

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Solution

The fourth proportional to 105,453.63, 145,526.03 and 57,706.98 is: 79,635.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,453.63 : 145,526.03 = 57,706.98 : x
  2. Step 2: Convert to fraction form
    105,453.63/145,526.03 = 57,706.98/x
  3. Step 3: Cross multiply
    105,453.63x = 145,526.03 × 57,706.98
  4. Step 4: Simplify right side
    105,453.63x = 8,397,867,702.69
  5. Step 5: Solve for x
    x = 8,397,867,702.69/105,453.63
  6. Step 6: Final answer
    x = 79,635.64

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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.