Home / 104,962.50-157,470.40-31,090.50

Finding the Fourth Proportional to 104,962.50, 157,470.40 and 31,090.50

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Solution

The fourth proportional to 104,962.50, 157,470.40 and 31,090.50 is: 46,643.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,962.50 : 157,470.40 = 31,090.50 : x
  2. Step 2: Convert to fraction form
    104,962.50/157,470.40 = 31,090.50/x
  3. Step 3: Cross multiply
    104,962.50x = 157,470.40 × 31,090.50
  4. Step 4: Simplify right side
    104,962.50x = 4,895,833,471.20
  5. Step 5: Solve for x
    x = 4,895,833,471.20/104,962.50
  6. Step 6: Final answer
    x = 46,643.64

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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.