Home / 105,001.12-157,412.31-45,792.64

Finding the Fourth Proportional to 105,001.12, 157,412.31 and 45,792.64

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Solution

The fourth proportional to 105,001.12, 157,412.31 and 45,792.64 is: 68,649.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,001.12 : 157,412.31 = 45,792.64 : x
  2. Step 2: Convert to fraction form
    105,001.12/157,412.31 = 45,792.64/x
  3. Step 3: Cross multiply
    105,001.12x = 157,412.31 × 45,792.64
  4. Step 4: Simplify right side
    105,001.12x = 7,208,325,243.40
  5. Step 5: Solve for x
    x = 7,208,325,243.40/105,001.12
  6. Step 6: Final answer
    x = 68,649.98

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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.