Home / 105,356.49-145,391.02-57,610.18

Finding the Fourth Proportional to 105,356.49, 145,391.02 and 57,610.18

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Solution

The fourth proportional to 105,356.49, 145,391.02 and 57,610.18 is: 79,501.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,356.49 : 145,391.02 = 57,610.18 : x
  2. Step 2: Convert to fraction form
    105,356.49/145,391.02 = 57,610.18/x
  3. Step 3: Cross multiply
    105,356.49x = 145,391.02 × 57,610.18
  4. Step 4: Simplify right side
    105,356.49x = 8,376,002,832.58
  5. Step 5: Solve for x
    x = 8,376,002,832.58/105,356.49
  6. Step 6: Final answer
    x = 79,501.54

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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.