Home / 261,401.04-392,064.50-83,885.09

Finding the Fourth Proportional to 261,401.04, 392,064.50 and 83,885.09

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Solution

The fourth proportional to 261,401.04, 392,064.50 and 83,885.09 is: 125,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,401.04 : 392,064.50 = 83,885.09 : x
  2. Step 2: Convert to fraction form
    261,401.04/392,064.50 = 83,885.09/x
  3. Step 3: Cross multiply
    261,401.04x = 392,064.50 × 83,885.09
  4. Step 4: Simplify right side
    261,401.04x = 32,888,364,117.70
  5. Step 5: Solve for x
    x = 32,888,364,117.70/261,401.04
  6. Step 6: Final answer
    x = 125,815.74

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1.5x scale

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.