Home / 261,384.11-392,127.21-83,877.47

Finding the Fourth Proportional to 261,384.11, 392,127.21 and 83,877.47

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Solution

The fourth proportional to 261,384.11, 392,127.21 and 83,877.47 is: 125,832.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,384.11 : 392,127.21 = 83,877.47 : x
  2. Step 2: Convert to fraction form
    261,384.11/392,127.21 = 83,877.47/x
  3. Step 3: Cross multiply
    261,384.11x = 392,127.21 × 83,877.47
  4. Step 4: Simplify right side
    261,384.11x = 32,890,636,332.32
  5. Step 5: Solve for x
    x = 32,890,636,332.32/261,384.11
  6. Step 6: Final answer
    x = 125,832.58

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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.