Home / 127,083.84-190,564-38,320.80

Finding the Fourth Proportional to 127,083.84, 190,564 and 38,320.80

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Solution

The fourth proportional to 127,083.84, 190,564 and 38,320.80 is: 57,462.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,083.84 : 190,564 = 38,320.80 : x
  2. Step 2: Convert to fraction form
    127,083.84/190,564 = 38,320.80/x
  3. Step 3: Cross multiply
    127,083.84x = 190,564 × 38,320.80
  4. Step 4: Simplify right side
    127,083.84x = 7,302,564,931.20
  5. Step 5: Solve for x
    x = 7,302,564,931.20/127,083.84
  6. Step 6: Final answer
    x = 57,462.58

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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.