Home / 100,924.32-139,275.60-58,507.44

Finding the Fourth Proportional to 100,924.32, 139,275.60 and 58,507.44

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Solution

The fourth proportional to 100,924.32, 139,275.60 and 58,507.44 is: 80,740.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,924.32 : 139,275.60 = 58,507.44 : x
  2. Step 2: Convert to fraction form
    100,924.32/139,275.60 = 58,507.44/x
  3. Step 3: Cross multiply
    100,924.32x = 139,275.60 × 58,507.44
  4. Step 4: Simplify right side
    100,924.32x = 8,148,658,810.46
  5. Step 5: Solve for x
    x = 8,148,658,810.46/100,924.32
  6. Step 6: Final answer
    x = 80,740.29

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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.