Home / 105,076.26-145,005.72-57,330.60

Finding the Fourth Proportional to 105,076.26, 145,005.72 and 57,330.60

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Solution

The fourth proportional to 105,076.26, 145,005.72 and 57,330.60 is: 79,116.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,076.26 : 145,005.72 = 57,330.60 : x
  2. Step 2: Convert to fraction form
    105,076.26/145,005.72 = 57,330.60/x
  3. Step 3: Cross multiply
    105,076.26x = 145,005.72 × 57,330.60
  4. Step 4: Simplify right side
    105,076.26x = 8,313,264,931.03
  5. Step 5: Solve for x
    x = 8,313,264,931.03/105,076.26
  6. Step 6: Final answer
    x = 79,116.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.