Home / 118,307.90-163,239.94-75,271.85

Finding the Fourth Proportional to 118,307.90, 163,239.94 and 75,271.85

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Solution

The fourth proportional to 118,307.90, 163,239.94 and 75,271.85 is: 103,859.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,307.90 : 163,239.94 = 75,271.85 : x
  2. Step 2: Convert to fraction form
    118,307.90/163,239.94 = 75,271.85/x
  3. Step 3: Cross multiply
    118,307.90x = 163,239.94 × 75,271.85
  4. Step 4: Simplify right side
    118,307.90x = 12,287,372,277.69
  5. Step 5: Solve for x
    x = 12,287,372,277.69/118,307.90
  6. Step 6: Final answer
    x = 103,859.27

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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.