Home / 100,924.48-139,282.07-55,602.45

Finding the Fourth Proportional to 100,924.48, 139,282.07 and 55,602.45

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Solution

The fourth proportional to 100,924.48, 139,282.07 and 55,602.45 is: 76,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,924.48 : 139,282.07 = 55,602.45 : x
  2. Step 2: Convert to fraction form
    100,924.48/139,282.07 = 55,602.45/x
  3. Step 3: Cross multiply
    100,924.48x = 139,282.07 × 55,602.45
  4. Step 4: Simplify right side
    100,924.48x = 7,744,424,820.28
  5. Step 5: Solve for x
    x = 7,744,424,820.28/100,924.48
  6. Step 6: Final answer
    x = 76,734.85

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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.