Home / 121,985.43-182,837.74-47,072.45

Finding the Fourth Proportional to 121,985.43, 182,837.74 and 47,072.45

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Solution

The fourth proportional to 121,985.43, 182,837.74 and 47,072.45 is: 70,554.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,985.43 : 182,837.74 = 47,072.45 : x
  2. Step 2: Convert to fraction form
    121,985.43/182,837.74 = 47,072.45/x
  3. Step 3: Cross multiply
    121,985.43x = 182,837.74 × 47,072.45
  4. Step 4: Simplify right side
    121,985.43x = 8,606,619,224.71
  5. Step 5: Solve for x
    x = 8,606,619,224.71/121,985.43
  6. Step 6: Final answer
    x = 70,554.49

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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.