Home / 127,236.80-190,701.60-64,875.20

Finding the Fourth Proportional to 127,236.80, 190,701.60 and 64,875.20

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Solution

The fourth proportional to 127,236.80, 190,701.60 and 64,875.20 is: 97,234.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,236.80 : 190,701.60 = 64,875.20 : x
  2. Step 2: Convert to fraction form
    127,236.80/190,701.60 = 64,875.20/x
  3. Step 3: Cross multiply
    127,236.80x = 190,701.60 × 64,875.20
  4. Step 4: Simplify right side
    127,236.80x = 12,371,804,440.32
  5. Step 5: Solve for x
    x = 12,371,804,440.32/127,236.80
  6. Step 6: Final answer
    x = 97,234.48

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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.