Home / 105,301.56-145,315.80-57,554.88

Finding the Fourth Proportional to 105,301.56, 145,315.80 and 57,554.88

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Solution

The fourth proportional to 105,301.56, 145,315.80 and 57,554.88 is: 79,425.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,301.56 : 145,315.80 = 57,554.88 : x
  2. Step 2: Convert to fraction form
    105,301.56/145,315.80 = 57,554.88/x
  3. Step 3: Cross multiply
    105,301.56x = 145,315.80 × 57,554.88
  4. Step 4: Simplify right side
    105,301.56x = 8,363,633,431.10
  5. Step 5: Solve for x
    x = 8,363,633,431.10/105,301.56
  6. Step 6: Final answer
    x = 79,425.54

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1.5x scale

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.