Home / 127,118.51-190,689.00-47,157.39

Finding the Fourth Proportional to 127,118.51, 190,689.00 and 47,157.39

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Solution

The fourth proportional to 127,118.51, 190,689.00 and 47,157.39 is: 70,740.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,118.51 : 190,689.00 = 47,157.39 : x
  2. Step 2: Convert to fraction form
    127,118.51/190,689.00 = 47,157.39/x
  3. Step 3: Cross multiply
    127,118.51x = 190,689.00 × 47,157.39
  4. Step 4: Simplify right side
    127,118.51x = 8,992,395,630.13
  5. Step 5: Solve for x
    x = 8,992,395,630.13/127,118.51
  6. Step 6: Final answer
    x = 70,740.25

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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.