Home / 102,968.41-142,089.71-57,646.03

Finding the Fourth Proportional to 102,968.41, 142,089.71 and 57,646.03

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Solution

The fourth proportional to 102,968.41, 142,089.71 and 57,646.03 is: 79,547.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,968.41 : 142,089.71 = 57,646.03 : x
  2. Step 2: Convert to fraction form
    102,968.41/142,089.71 = 57,646.03/x
  3. Step 3: Cross multiply
    102,968.41x = 142,089.71 × 57,646.03
  4. Step 4: Simplify right side
    102,968.41x = 8,190,907,685.35
  5. Step 5: Solve for x
    x = 8,190,907,685.35/102,968.41
  6. Step 6: Final answer
    x = 79,547.77

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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.