Home / 105,233.95-145,221.02-57,486.07

Finding the Fourth Proportional to 105,233.95, 145,221.02 and 57,486.07

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Solution

The fourth proportional to 105,233.95, 145,221.02 and 57,486.07 is: 79,329.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,233.95 : 145,221.02 = 57,486.07 : x
  2. Step 2: Convert to fraction form
    105,233.95/145,221.02 = 57,486.07/x
  3. Step 3: Cross multiply
    105,233.95x = 145,221.02 × 57,486.07
  4. Step 4: Simplify right side
    105,233.95x = 8,348,185,721.19
  5. Step 5: Solve for x
    x = 8,348,185,721.19/105,233.95
  6. Step 6: Final answer
    x = 79,329.78

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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.