Home / 261,748.04-392,663.37-111,989.30

Finding the Fourth Proportional to 261,748.04, 392,663.37 and 111,989.30

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Solution

The fourth proportional to 261,748.04, 392,663.37 and 111,989.30 is: 168,001.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,748.04 : 392,663.37 = 111,989.30 : x
  2. Step 2: Convert to fraction form
    261,748.04/392,663.37 = 111,989.30/x
  3. Step 3: Cross multiply
    261,748.04x = 392,663.37 × 111,989.30
  4. Step 4: Simplify right side
    261,748.04x = 43,974,095,941.94
  5. Step 5: Solve for x
    x = 43,974,095,941.94/261,748.04
  6. Step 6: Final answer
    x = 168,001.62

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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.