Home / 105,038.02-157,476.26-54,382.75

Finding the Fourth Proportional to 105,038.02, 157,476.26 and 54,382.75

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Solution

The fourth proportional to 105,038.02, 157,476.26 and 54,382.75 is: 81,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,038.02 : 157,476.26 = 54,382.75 : x
  2. Step 2: Convert to fraction form
    105,038.02/157,476.26 = 54,382.75/x
  3. Step 3: Cross multiply
    105,038.02x = 157,476.26 × 54,382.75
  4. Step 4: Simplify right side
    105,038.02x = 8,563,991,019.22
  5. Step 5: Solve for x
    x = 8,563,991,019.22/105,038.02
  6. Step 6: Final answer
    x = 81,532.30

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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.