Home / 99,252.71-136,985.06-72,483.83

Finding the Fourth Proportional to 99,252.71, 136,985.06 and 72,483.83

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Solution

The fourth proportional to 99,252.71, 136,985.06 and 72,483.83 is: 100,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,252.71 : 136,985.06 = 72,483.83 : x
  2. Step 2: Convert to fraction form
    99,252.71/136,985.06 = 72,483.83/x
  3. Step 3: Cross multiply
    99,252.71x = 136,985.06 × 72,483.83
  4. Step 4: Simplify right side
    99,252.71x = 9,929,201,297.86
  5. Step 5: Solve for x
    x = 9,929,201,297.86/99,252.71
  6. Step 6: Final answer
    x = 100,039.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.