Home / 138,026.68-190,475.67-77,597.59

Finding the Fourth Proportional to 138,026.68, 190,475.67 and 77,597.59

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Solution

The fourth proportional to 138,026.68, 190,475.67 and 77,597.59 is: 107,084.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,026.68 : 190,475.67 = 77,597.59 : x
  2. Step 2: Convert to fraction form
    138,026.68/190,475.67 = 77,597.59/x
  3. Step 3: Cross multiply
    138,026.68x = 190,475.67 × 77,597.59
  4. Step 4: Simplify right side
    138,026.68x = 14,780,452,945.64
  5. Step 5: Solve for x
    x = 14,780,452,945.64/138,026.68
  6. Step 6: Final answer
    x = 107,084.03

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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.