Home / 126,212.63-174,142.35-77,141.82

Finding the Fourth Proportional to 126,212.63, 174,142.35 and 77,141.82

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Solution

The fourth proportional to 126,212.63, 174,142.35 and 77,141.82 is: 106,436.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,212.63 : 174,142.35 = 77,141.82 : x
  2. Step 2: Convert to fraction form
    126,212.63/174,142.35 = 77,141.82/x
  3. Step 3: Cross multiply
    126,212.63x = 174,142.35 × 77,141.82
  4. Step 4: Simplify right side
    126,212.63x = 13,433,657,818.08
  5. Step 5: Solve for x
    x = 13,433,657,818.08/126,212.63
  6. Step 6: Final answer
    x = 106,436.72

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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.