Home / 100,875.73-139,203.18-57,853.00

Finding the Fourth Proportional to 100,875.73, 139,203.18 and 57,853.00

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Solution

The fourth proportional to 100,875.73, 139,203.18 and 57,853.00 is: 79,834.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,875.73 : 139,203.18 = 57,853.00 : x
  2. Step 2: Convert to fraction form
    100,875.73/139,203.18 = 57,853.00/x
  3. Step 3: Cross multiply
    100,875.73x = 139,203.18 × 57,853.00
  4. Step 4: Simplify right side
    100,875.73x = 8,053,320,915.21
  5. Step 5: Solve for x
    x = 8,053,320,915.21/100,875.73
  6. Step 6: Final answer
    x = 79,834.08

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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.