Home / 105,193.12-157,890.48-65,829.28

Finding the Fourth Proportional to 105,193.12, 157,890.48 and 65,829.28

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Solution

The fourth proportional to 105,193.12, 157,890.48 and 65,829.28 is: 98,807.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,193.12 : 157,890.48 = 65,829.28 : x
  2. Step 2: Convert to fraction form
    105,193.12/157,890.48 = 65,829.28/x
  3. Step 3: Cross multiply
    105,193.12x = 157,890.48 × 65,829.28
  4. Step 4: Simplify right side
    105,193.12x = 10,393,816,617.25
  5. Step 5: Solve for x
    x = 10,393,816,617.25/105,193.12
  6. Step 6: Final answer
    x = 98,807.00

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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.