Home / 118,883.53-178,345.37-39,979

Finding the Fourth Proportional to 118,883.53, 178,345.37 and 39,979

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Solution

The fourth proportional to 118,883.53, 178,345.37 and 39,979 is: 59,975.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,883.53 : 178,345.37 = 39,979 : x
  2. Step 2: Convert to fraction form
    118,883.53/178,345.37 = 39,979/x
  3. Step 3: Cross multiply
    118,883.53x = 178,345.37 × 39,979
  4. Step 4: Simplify right side
    118,883.53x = 7,130,069,547.23
  5. Step 5: Solve for x
    x = 7,130,069,547.23/118,883.53
  6. Step 6: Final answer
    x = 59,975.25

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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.