Home / 105,889.12-146,106.93-71,924.74

Finding the Fourth Proportional to 105,889.12, 146,106.93 and 71,924.74

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Solution

The fourth proportional to 105,889.12, 146,106.93 and 71,924.74 is: 99,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,889.12 : 146,106.93 = 71,924.74 : x
  2. Step 2: Convert to fraction form
    105,889.12/146,106.93 = 71,924.74/x
  3. Step 3: Cross multiply
    105,889.12x = 146,106.93 × 71,924.74
  4. Step 4: Simplify right side
    105,889.12x = 10,508,702,952.45
  5. Step 5: Solve for x
    x = 10,508,702,952.45/105,889.12
  6. Step 6: Final answer
    x = 99,242.52

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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.