Home / 151,985.04-209,764.86-102,904.39

Finding the Fourth Proportional to 151,985.04, 209,764.86 and 102,904.39

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Solution

The fourth proportional to 151,985.04, 209,764.86 and 102,904.39 is: 142,025.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,985.04 : 209,764.86 = 102,904.39 : x
  2. Step 2: Convert to fraction form
    151,985.04/209,764.86 = 102,904.39/x
  3. Step 3: Cross multiply
    151,985.04x = 209,764.86 × 102,904.39
  4. Step 4: Simplify right side
    151,985.04x = 21,585,724,961.74
  5. Step 5: Solve for x
    x = 21,585,724,961.74/151,985.04
  6. Step 6: Final answer
    x = 142,025.33

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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.