Home / 146,013.51-218,966.80-71,111.19

Finding the Fourth Proportional to 146,013.51, 218,966.80 and 71,111.19

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Solution

The fourth proportional to 146,013.51, 218,966.80 and 71,111.19 is: 106,640.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,013.51 : 218,966.80 = 71,111.19 : x
  2. Step 2: Convert to fraction form
    146,013.51/218,966.80 = 71,111.19/x
  3. Step 3: Cross multiply
    146,013.51x = 218,966.80 × 71,111.19
  4. Step 4: Simplify right side
    146,013.51x = 15,570,989,718.49
  5. Step 5: Solve for x
    x = 15,570,989,718.49/146,013.51
  6. Step 6: Final answer
    x = 106,640.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.