Home / 127,154.31-190,699.34-47,148.31

Finding the Fourth Proportional to 127,154.31, 190,699.34 and 47,148.31

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Solution

The fourth proportional to 127,154.31, 190,699.34 and 47,148.31 is: 70,710.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,154.31 : 190,699.34 = 47,148.31 : x
  2. Step 2: Convert to fraction form
    127,154.31/190,699.34 = 47,148.31/x
  3. Step 3: Cross multiply
    127,154.31x = 190,699.34 × 47,148.31
  4. Step 4: Simplify right side
    127,154.31x = 8,991,151,599.12
  5. Step 5: Solve for x
    x = 8,991,151,599.12/127,154.31
  6. Step 6: Final answer
    x = 70,710.55

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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.