Home / 153,669.66-211,985.06-102,666.08

Finding the Fourth Proportional to 153,669.66, 211,985.06 and 102,666.08

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Solution

The fourth proportional to 153,669.66, 211,985.06 and 102,666.08 is: 141,626.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,669.66 : 211,985.06 = 102,666.08 : x
  2. Step 2: Convert to fraction form
    153,669.66/211,985.06 = 102,666.08/x
  3. Step 3: Cross multiply
    153,669.66x = 211,985.06 × 102,666.08
  4. Step 4: Simplify right side
    153,669.66x = 21,763,675,128.76
  5. Step 5: Solve for x
    x = 21,763,675,128.76/153,669.66
  6. Step 6: Final answer
    x = 141,626.36

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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.