Home / 127,866.78-176,421.54-72,675.34

Finding the Fourth Proportional to 127,866.78, 176,421.54 and 72,675.34

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Solution

The fourth proportional to 127,866.78, 176,421.54 and 72,675.34 is: 100,272.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,866.78 : 176,421.54 = 72,675.34 : x
  2. Step 2: Convert to fraction form
    127,866.78/176,421.54 = 72,675.34/x
  3. Step 3: Cross multiply
    127,866.78x = 176,421.54 × 72,675.34
  4. Step 4: Simplify right side
    127,866.78x = 12,821,494,157.34
  5. Step 5: Solve for x
    x = 12,821,494,157.34/127,866.78
  6. Step 6: Final answer
    x = 100,272.29

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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.