Home / 143,257.04-214,681.80-105,520.36

Finding the Fourth Proportional to 143,257.04, 214,681.80 and 105,520.36

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Solution

The fourth proportional to 143,257.04, 214,681.80 and 105,520.36 is: 158,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,257.04 : 214,681.80 = 105,520.36 : x
  2. Step 2: Convert to fraction form
    143,257.04/214,681.80 = 105,520.36/x
  3. Step 3: Cross multiply
    143,257.04x = 214,681.80 × 105,520.36
  4. Step 4: Simplify right side
    143,257.04x = 22,653,300,821.45
  5. Step 5: Solve for x
    x = 22,653,300,821.45/143,257.04
  6. Step 6: Final answer
    x = 158,130.45

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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.