Home / 148,070.52-221,971.38-76,909.98

Finding the Fourth Proportional to 148,070.52, 221,971.38 and 76,909.98

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Solution

The fourth proportional to 148,070.52, 221,971.38 and 76,909.98 is: 115,295.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,070.52 : 221,971.38 = 76,909.98 : x
  2. Step 2: Convert to fraction form
    148,070.52/221,971.38 = 76,909.98/x
  3. Step 3: Cross multiply
    148,070.52x = 221,971.38 × 76,909.98
  4. Step 4: Simplify right side
    148,070.52x = 17,071,814,396.37
  5. Step 5: Solve for x
    x = 17,071,814,396.37/148,070.52
  6. Step 6: Final answer
    x = 115,295.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.