Home / 103,515.47-142,833.51-58,187.16

Finding the Fourth Proportional to 103,515.47, 142,833.51 and 58,187.16

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Solution

The fourth proportional to 103,515.47, 142,833.51 and 58,187.16 is: 80,288.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,515.47 : 142,833.51 = 58,187.16 : x
  2. Step 2: Convert to fraction form
    103,515.47/142,833.51 = 58,187.16/x
  3. Step 3: Cross multiply
    103,515.47x = 142,833.51 × 58,187.16
  4. Step 4: Simplify right side
    103,515.47x = 8,311,076,299.73
  5. Step 5: Solve for x
    x = 8,311,076,299.73/103,515.47
  6. Step 6: Final answer
    x = 80,288.25

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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.