Home / 126,031.95-173,908.35-85,285.17

Finding the Fourth Proportional to 126,031.95, 173,908.35 and 85,285.17

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Solution

The fourth proportional to 126,031.95, 173,908.35 and 85,285.17 is: 117,682.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,031.95 : 173,908.35 = 85,285.17 : x
  2. Step 2: Convert to fraction form
    126,031.95/173,908.35 = 85,285.17/x
  3. Step 3: Cross multiply
    126,031.95x = 173,908.35 × 85,285.17
  4. Step 4: Simplify right side
    126,031.95x = 14,831,803,194.17
  5. Step 5: Solve for x
    x = 14,831,803,194.17/126,031.95
  6. Step 6: Final answer
    x = 117,682.88

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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.