Home / 149,357.36-206,117.40-85,706.48

Finding the Fourth Proportional to 149,357.36, 206,117.40 and 85,706.48

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Solution

The fourth proportional to 149,357.36, 206,117.40 and 85,706.48 is: 118,277.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,357.36 : 206,117.40 = 85,706.48 : x
  2. Step 2: Convert to fraction form
    149,357.36/206,117.40 = 85,706.48/x
  3. Step 3: Cross multiply
    149,357.36x = 206,117.40 × 85,706.48
  4. Step 4: Simplify right side
    149,357.36x = 17,665,596,820.75
  5. Step 5: Solve for x
    x = 17,665,596,820.75/149,357.36
  6. Step 6: Final answer
    x = 118,277.38

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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.