Home / 143,784.80-214,612.66-134,920.16

Finding the Fourth Proportional to 143,784.80, 214,612.66 and 134,920.16

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Solution

The fourth proportional to 143,784.80, 214,612.66 and 134,920.16 is: 201,381.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,784.80 : 214,612.66 = 134,920.16 : x
  2. Step 2: Convert to fraction form
    143,784.80/214,612.66 = 134,920.16/x
  3. Step 3: Cross multiply
    143,784.80x = 214,612.66 × 134,920.16
  4. Step 4: Simplify right side
    143,784.80x = 28,955,574,425.23
  5. Step 5: Solve for x
    x = 28,955,574,425.23/143,784.80
  6. Step 6: Final answer
    x = 201,381.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.