Home / 106,717.55-147,255.27-61,378.31

Finding the Fourth Proportional to 106,717.55, 147,255.27 and 61,378.31

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Solution

The fourth proportional to 106,717.55, 147,255.27 and 61,378.31 is: 84,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,717.55 : 147,255.27 = 61,378.31 : x
  2. Step 2: Convert to fraction form
    106,717.55/147,255.27 = 61,378.31/x
  3. Step 3: Cross multiply
    106,717.55x = 147,255.27 × 61,378.31
  4. Step 4: Simplify right side
    106,717.55x = 9,038,278,920.85
  5. Step 5: Solve for x
    x = 9,038,278,920.85/106,717.55
  6. Step 6: Final answer
    x = 84,693.46

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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.