Home / 127,775.64-191,698.02-72,410.52

Finding the Fourth Proportional to 127,775.64, 191,698.02 and 72,410.52

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Solution

The fourth proportional to 127,775.64, 191,698.02 and 72,410.52 is: 108,635.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,775.64 : 191,698.02 = 72,410.52 : x
  2. Step 2: Convert to fraction form
    127,775.64/191,698.02 = 72,410.52/x
  3. Step 3: Cross multiply
    127,775.64x = 191,698.02 × 72,410.52
  4. Step 4: Simplify right side
    127,775.64x = 13,880,953,311.17
  5. Step 5: Solve for x
    x = 13,880,953,311.17/127,775.64
  6. Step 6: Final answer
    x = 108,635.37

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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.