Home / 103,666.96-155,311.80-72,010.14

Finding the Fourth Proportional to 103,666.96, 155,311.80 and 72,010.14

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Solution

The fourth proportional to 103,666.96, 155,311.80 and 72,010.14 is: 107,884.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,666.96 : 155,311.80 = 72,010.14 : x
  2. Step 2: Convert to fraction form
    103,666.96/155,311.80 = 72,010.14/x
  3. Step 3: Cross multiply
    103,666.96x = 155,311.80 × 72,010.14
  4. Step 4: Simplify right side
    103,666.96x = 11,184,024,461.65
  5. Step 5: Solve for x
    x = 11,184,024,461.65/103,666.96
  6. Step 6: Final answer
    x = 107,884.18

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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.