Home / 114,669.20-172,003.80-86,675.60

Finding the Fourth Proportional to 114,669.20, 172,003.80 and 86,675.60

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Solution

The fourth proportional to 114,669.20, 172,003.80 and 86,675.60 is: 130,013.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,669.20 : 172,003.80 = 86,675.60 : x
  2. Step 2: Convert to fraction form
    114,669.20/172,003.80 = 86,675.60/x
  3. Step 3: Cross multiply
    114,669.20x = 172,003.80 × 86,675.60
  4. Step 4: Simplify right side
    114,669.20x = 14,908,532,567.28
  5. Step 5: Solve for x
    x = 14,908,532,567.28/114,669.20
  6. Step 6: Final answer
    x = 130,013.40

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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.