Home / 261,402.04-392,066-83,886.09

Finding the Fourth Proportional to 261,402.04, 392,066 and 83,886.09

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Solution

The fourth proportional to 261,402.04, 392,066 and 83,886.09 is: 125,817.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,402.04 : 392,066 = 83,886.09 : x
  2. Step 2: Convert to fraction form
    261,402.04/392,066 = 83,886.09/x
  3. Step 3: Cross multiply
    261,402.04x = 392,066 × 83,886.09
  4. Step 4: Simplify right side
    261,402.04x = 32,888,883,761.94
  5. Step 5: Solve for x
    x = 32,888,883,761.94/261,402.04
  6. Step 6: Final answer
    x = 125,817.24

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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.