Home / 121,878.36-182,731.68-46,935.72

Finding the Fourth Proportional to 121,878.36, 182,731.68 and 46,935.72

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Solution

The fourth proportional to 121,878.36, 182,731.68 and 46,935.72 is: 70,370.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,878.36 : 182,731.68 = 46,935.72 : x
  2. Step 2: Convert to fraction form
    121,878.36/182,731.68 = 46,935.72/x
  3. Step 3: Cross multiply
    121,878.36x = 182,731.68 × 46,935.72
  4. Step 4: Simplify right side
    121,878.36x = 8,576,642,967.61
  5. Step 5: Solve for x
    x = 8,576,642,967.61/121,878.36
  6. Step 6: Final answer
    x = 70,370.52

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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.