Home / 105,146.52-157,681.02-82,701.12

Finding the Fourth Proportional to 105,146.52, 157,681.02 and 82,701.12

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Solution

The fourth proportional to 105,146.52, 157,681.02 and 82,701.12 is: 124,021.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,146.52 : 157,681.02 = 82,701.12 : x
  2. Step 2: Convert to fraction form
    105,146.52/157,681.02 = 82,701.12/x
  3. Step 3: Cross multiply
    105,146.52x = 157,681.02 × 82,701.12
  4. Step 4: Simplify right side
    105,146.52x = 13,040,396,956.74
  5. Step 5: Solve for x
    x = 13,040,396,956.74/105,146.52
  6. Step 6: Final answer
    x = 124,021.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.