Home / 143,255.04-214,678.81-105,518.35

Finding the Fourth Proportional to 143,255.04, 214,678.81 and 105,518.35

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Solution

The fourth proportional to 143,255.04, 214,678.81 and 105,518.35 is: 158,127.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,255.04 : 214,678.81 = 105,518.35 : x
  2. Step 2: Convert to fraction form
    143,255.04/214,678.81 = 105,518.35/x
  3. Step 3: Cross multiply
    143,255.04x = 214,678.81 × 105,518.35
  4. Step 4: Simplify right side
    143,255.04x = 22,652,553,811.16
  5. Step 5: Solve for x
    x = 22,652,553,811.16/143,255.04
  6. Step 6: Final answer
    x = 158,127.45

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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.