Home / 180,962.19-249,716.07-100,389.51

Finding the Fourth Proportional to 180,962.19, 249,716.07 and 100,389.51

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Solution

The fourth proportional to 180,962.19, 249,716.07 and 100,389.51 is: 138,531.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,962.19 : 249,716.07 = 100,389.51 : x
  2. Step 2: Convert to fraction form
    180,962.19/249,716.07 = 100,389.51/x
  3. Step 3: Cross multiply
    180,962.19x = 249,716.07 × 100,389.51
  4. Step 4: Simplify right side
    180,962.19x = 25,068,873,906.43
  5. Step 5: Solve for x
    x = 25,068,873,906.43/180,962.19
  6. Step 6: Final answer
    x = 138,531.00

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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.