Home / 149,129-205,968.66-101,302.28

Finding the Fourth Proportional to 149,129, 205,968.66 and 101,302.28

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Solution

The fourth proportional to 149,129, 205,968.66 and 101,302.28 is: 139,913.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,129 : 205,968.66 = 101,302.28 : x
  2. Step 2: Convert to fraction form
    149,129/205,968.66 = 101,302.28/x
  3. Step 3: Cross multiply
    149,129x = 205,968.66 × 101,302.28
  4. Step 4: Simplify right side
    149,129x = 20,865,094,866.54
  5. Step 5: Solve for x
    x = 20,865,094,866.54/149,129
  6. Step 6: Final answer
    x = 139,913.06

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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.