Home / 102,975.91-142,100.02-57,653.47

Finding the Fourth Proportional to 102,975.91, 142,100.02 and 57,653.47

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Solution

The fourth proportional to 102,975.91, 142,100.02 and 57,653.47 is: 79,558.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,975.91 : 142,100.02 = 57,653.47 : x
  2. Step 2: Convert to fraction form
    102,975.91/142,100.02 = 57,653.47/x
  3. Step 3: Cross multiply
    102,975.91x = 142,100.02 × 57,653.47
  4. Step 4: Simplify right side
    102,975.91x = 8,192,559,489.76
  5. Step 5: Solve for x
    x = 8,192,559,489.76/102,975.91
  6. Step 6: Final answer
    x = 79,558.02

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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.