Home / 138,080.52-190,548.27-76,825.35

Finding the Fourth Proportional to 138,080.52, 190,548.27 and 76,825.35

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Solution

The fourth proportional to 138,080.52, 190,548.27 and 76,825.35 is: 106,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,080.52 : 190,548.27 = 76,825.35 : x
  2. Step 2: Convert to fraction form
    138,080.52/190,548.27 = 76,825.35/x
  3. Step 3: Cross multiply
    138,080.52x = 190,548.27 × 76,825.35
  4. Step 4: Simplify right side
    138,080.52x = 14,638,937,534.64
  5. Step 5: Solve for x
    x = 14,638,937,534.64/138,080.52
  6. Step 6: Final answer
    x = 106,017.40

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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.