Home / 100,853.59-139,196.64-58,412.13

Finding the Fourth Proportional to 100,853.59, 139,196.64 and 58,412.13

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Solution

The fourth proportional to 100,853.59, 139,196.64 and 58,412.13 is: 80,619.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,853.59 : 139,196.64 = 58,412.13 : x
  2. Step 2: Convert to fraction form
    100,853.59/139,196.64 = 58,412.13/x
  3. Step 3: Cross multiply
    100,853.59x = 139,196.64 × 58,412.13
  4. Step 4: Simplify right side
    100,853.59x = 8,130,772,231.24
  5. Step 5: Solve for x
    x = 8,130,772,231.24/100,853.59
  6. Step 6: Final answer
    x = 80,619.56

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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.