Home / 127,004.61-190,468.02-87,813.57

Finding the Fourth Proportional to 127,004.61, 190,468.02 and 87,813.57

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Solution

The fourth proportional to 127,004.61, 190,468.02 and 87,813.57 is: 131,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,004.61 : 190,468.02 = 87,813.57 : x
  2. Step 2: Convert to fraction form
    127,004.61/190,468.02 = 87,813.57/x
  3. Step 3: Cross multiply
    127,004.61x = 190,468.02 × 87,813.57
  4. Step 4: Simplify right side
    127,004.61x = 16,725,676,807.03
  5. Step 5: Solve for x
    x = 16,725,676,807.03/127,004.61
  6. Step 6: Final answer
    x = 131,693.46

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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.