Home / 114,868.08-172,386.36-75,411.36

Finding the Fourth Proportional to 114,868.08, 172,386.36 and 75,411.36

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Solution

The fourth proportional to 114,868.08, 172,386.36 and 75,411.36 is: 113,172.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,868.08 : 172,386.36 = 75,411.36 : x
  2. Step 2: Convert to fraction form
    114,868.08/172,386.36 = 75,411.36/x
  3. Step 3: Cross multiply
    114,868.08x = 172,386.36 × 75,411.36
  4. Step 4: Simplify right side
    114,868.08x = 12,999,889,853.05
  5. Step 5: Solve for x
    x = 12,999,889,853.05/114,868.08
  6. Step 6: Final answer
    x = 113,172.34

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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.