Home / 127,230.80-190,692.60-64,869.20

Finding the Fourth Proportional to 127,230.80, 190,692.60 and 64,869.20

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Solution

The fourth proportional to 127,230.80, 190,692.60 and 64,869.20 is: 97,225.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,230.80 : 190,692.60 = 64,869.20 : x
  2. Step 2: Convert to fraction form
    127,230.80/190,692.60 = 64,869.20/x
  3. Step 3: Cross multiply
    127,230.80x = 190,692.60 × 64,869.20
  4. Step 4: Simplify right side
    127,230.80x = 12,370,076,407.92
  5. Step 5: Solve for x
    x = 12,370,076,407.92/127,230.80
  6. Step 6: Final answer
    x = 97,225.49

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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.