Home / 127,312.02-190,963.17-43,078.50

Finding the Fourth Proportional to 127,312.02, 190,963.17 and 43,078.50

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Solution

The fourth proportional to 127,312.02, 190,963.17 and 43,078.50 is: 64,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,312.02 : 190,963.17 = 43,078.50 : x
  2. Step 2: Convert to fraction form
    127,312.02/190,963.17 = 43,078.50/x
  3. Step 3: Cross multiply
    127,312.02x = 190,963.17 × 43,078.50
  4. Step 4: Simplify right side
    127,312.02x = 8,226,406,918.85
  5. Step 5: Solve for x
    x = 8,226,406,918.85/127,312.02
  6. Step 6: Final answer
    x = 64,616.11

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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.