Home / 153,113.13-211,297.43-99,418.41

Finding the Fourth Proportional to 153,113.13, 211,297.43 and 99,418.41

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Solution

The fourth proportional to 153,113.13, 211,297.43 and 99,418.41 is: 137,198.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,113.13 : 211,297.43 = 99,418.41 : x
  2. Step 2: Convert to fraction form
    153,113.13/211,297.43 = 99,418.41/x
  3. Step 3: Cross multiply
    153,113.13x = 211,297.43 × 99,418.41
  4. Step 4: Simplify right side
    153,113.13x = 21,006,854,030.59
  5. Step 5: Solve for x
    x = 21,006,854,030.59/153,113.13
  6. Step 6: Final answer
    x = 137,198.25

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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.