Home / 100,824.96-139,146.48-58,384.24

Finding the Fourth Proportional to 100,824.96, 139,146.48 and 58,384.24

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Solution

The fourth proportional to 100,824.96, 139,146.48 and 58,384.24 is: 80,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,824.96 : 139,146.48 = 58,384.24 : x
  2. Step 2: Convert to fraction form
    100,824.96/139,146.48 = 58,384.24/x
  3. Step 3: Cross multiply
    100,824.96x = 139,146.48 × 58,384.24
  4. Step 4: Simplify right side
    100,824.96x = 8,123,961,483.48
  5. Step 5: Solve for x
    x = 8,123,961,483.48/100,824.96
  6. Step 6: Final answer
    x = 80,574.90

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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.