Home / 117,888.12-162,685.98-64,173.60

Finding the Fourth Proportional to 117,888.12, 162,685.98 and 64,173.60

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Solution

The fourth proportional to 117,888.12, 162,685.98 and 64,173.60 is: 88,559.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,888.12 : 162,685.98 = 64,173.60 : x
  2. Step 2: Convert to fraction form
    117,888.12/162,685.98 = 64,173.60/x
  3. Step 3: Cross multiply
    117,888.12x = 162,685.98 × 64,173.60
  4. Step 4: Simplify right side
    117,888.12x = 10,440,145,006.13
  5. Step 5: Solve for x
    x = 10,440,145,006.13/117,888.12
  6. Step 6: Final answer
    x = 88,559.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.