Home / 127,688.32-191,271.36-104,080

Finding the Fourth Proportional to 127,688.32, 191,271.36 and 104,080

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Solution

The fourth proportional to 127,688.32, 191,271.36 and 104,080 is: 155,907.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,688.32 : 191,271.36 = 104,080 : x
  2. Step 2: Convert to fraction form
    127,688.32/191,271.36 = 104,080/x
  3. Step 3: Cross multiply
    127,688.32x = 191,271.36 × 104,080
  4. Step 4: Simplify right side
    127,688.32x = 19,907,523,148.80
  5. Step 5: Solve for x
    x = 19,907,523,148.80/127,688.32
  6. Step 6: Final answer
    x = 155,907.16

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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.