Home / 100,853.03-139,175.64-60,045.63

Finding the Fourth Proportional to 100,853.03, 139,175.64 and 60,045.63

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Solution

The fourth proportional to 100,853.03, 139,175.64 and 60,045.63 is: 82,862.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,853.03 : 139,175.64 = 60,045.63 : x
  2. Step 2: Convert to fraction form
    100,853.03/139,175.64 = 60,045.63/x
  3. Step 3: Cross multiply
    100,853.03x = 139,175.64 × 60,045.63
  4. Step 4: Simplify right side
    100,853.03x = 8,356,888,984.45
  5. Step 5: Solve for x
    x = 8,356,888,984.45/100,853.03
  6. Step 6: Final answer
    x = 82,862.06

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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.