Home / 106,117.99-146,440.60-57,720.89

Finding the Fourth Proportional to 106,117.99, 146,440.60 and 57,720.89

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Solution

The fourth proportional to 106,117.99, 146,440.60 and 57,720.89 is: 79,653.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,117.99 : 146,440.60 = 57,720.89 : x
  2. Step 2: Convert to fraction form
    106,117.99/146,440.60 = 57,720.89/x
  3. Step 3: Cross multiply
    106,117.99x = 146,440.60 × 57,720.89
  4. Step 4: Simplify right side
    106,117.99x = 8,452,681,985.93
  5. Step 5: Solve for x
    x = 8,452,681,985.93/106,117.99
  6. Step 6: Final answer
    x = 79,653.62

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1.5x scale

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.