Home / 127,140.51-190,802.93-47,189.86

Finding the Fourth Proportional to 127,140.51, 190,802.93 and 47,189.86

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Solution

The fourth proportional to 127,140.51, 190,802.93 and 47,189.86 is: 70,818.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,140.51 : 190,802.93 = 47,189.86 : x
  2. Step 2: Convert to fraction form
    127,140.51/190,802.93 = 47,189.86/x
  3. Step 3: Cross multiply
    127,140.51x = 190,802.93 × 47,189.86
  4. Step 4: Simplify right side
    127,140.51x = 9,003,962,841.33
  5. Step 5: Solve for x
    x = 9,003,962,841.33/127,140.51
  6. Step 6: Final answer
    x = 70,818.99

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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.