Home / 153,650.40-211,962.18-102,675.66

Finding the Fourth Proportional to 153,650.40, 211,962.18 and 102,675.66

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Solution

The fourth proportional to 153,650.40, 211,962.18 and 102,675.66 is: 141,642.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,650.40 : 211,962.18 = 102,675.66 : x
  2. Step 2: Convert to fraction form
    153,650.40/211,962.18 = 102,675.66/x
  3. Step 3: Cross multiply
    153,650.40x = 211,962.18 × 102,675.66
  4. Step 4: Simplify right side
    153,650.40x = 21,763,356,726.54
  5. Step 5: Solve for x
    x = 21,763,356,726.54/153,650.40
  6. Step 6: Final answer
    x = 141,642.04

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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.