Home / 136,427.51-188,275.64-75,998.15

Finding the Fourth Proportional to 136,427.51, 188,275.64 and 75,998.15

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Solution

The fourth proportional to 136,427.51, 188,275.64 and 75,998.15 is: 104,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,427.51 : 188,275.64 = 75,998.15 : x
  2. Step 2: Convert to fraction form
    136,427.51/188,275.64 = 75,998.15/x
  3. Step 3: Cross multiply
    136,427.51x = 188,275.64 × 75,998.15
  4. Step 4: Simplify right side
    136,427.51x = 14,308,599,008.70
  5. Step 5: Solve for x
    x = 14,308,599,008.70/136,427.51
  6. Step 6: Final answer
    x = 104,880.60

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1.5x scale

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.