Home / 127,280.78-175,655.40-70,692.02

Finding the Fourth Proportional to 127,280.78, 175,655.40 and 70,692.02

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Solution

The fourth proportional to 127,280.78, 175,655.40 and 70,692.02 is: 97,559.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,280.78 : 175,655.40 = 70,692.02 : x
  2. Step 2: Convert to fraction form
    127,280.78/175,655.40 = 70,692.02/x
  3. Step 3: Cross multiply
    127,280.78x = 175,655.40 × 70,692.02
  4. Step 4: Simplify right side
    127,280.78x = 12,417,435,049.91
  5. Step 5: Solve for x
    x = 12,417,435,049.91/127,280.78
  6. Step 6: Final answer
    x = 97,559.39

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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.