Home / 138,220.12-190,802.61-92,924.37

Finding the Fourth Proportional to 138,220.12, 190,802.61 and 92,924.37

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Solution

The fourth proportional to 138,220.12, 190,802.61 and 92,924.37 is: 128,275.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,220.12 : 190,802.61 = 92,924.37 : x
  2. Step 2: Convert to fraction form
    138,220.12/190,802.61 = 92,924.37/x
  3. Step 3: Cross multiply
    138,220.12x = 190,802.61 × 92,924.37
  4. Step 4: Simplify right side
    138,220.12x = 17,730,211,438.86
  5. Step 5: Solve for x
    x = 17,730,211,438.86/138,220.12
  6. Step 6: Final answer
    x = 128,275.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.