Home / 113,816.98-170,681.73-78,650.02

Finding the Fourth Proportional to 113,816.98, 170,681.73 and 78,650.02

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Solution

The fourth proportional to 113,816.98, 170,681.73 and 78,650.02 is: 117,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,816.98 : 170,681.73 = 78,650.02 : x
  2. Step 2: Convert to fraction form
    113,816.98/170,681.73 = 78,650.02/x
  3. Step 3: Cross multiply
    113,816.98x = 170,681.73 × 78,650.02
  4. Step 4: Simplify right side
    113,816.98x = 13,424,121,478.13
  5. Step 5: Solve for x
    x = 13,424,121,478.13/113,816.98
  6. Step 6: Final answer
    x = 117,944.80

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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.