Home / 106,307.79-146,567.93-87,117.27

Finding the Fourth Proportional to 106,307.79, 146,567.93 and 87,117.27

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Solution

The fourth proportional to 106,307.79, 146,567.93 and 87,117.27 is: 120,109.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,307.79 : 146,567.93 = 87,117.27 : x
  2. Step 2: Convert to fraction form
    106,307.79/146,567.93 = 87,117.27/x
  3. Step 3: Cross multiply
    106,307.79x = 146,567.93 × 87,117.27
  4. Step 4: Simplify right side
    106,307.79x = 12,768,597,495.56
  5. Step 5: Solve for x
    x = 12,768,597,495.56/106,307.79
  6. Step 6: Final answer
    x = 120,109.71

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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.