Home / 103,275.84-142,522.02-57,963.63

Finding the Fourth Proportional to 103,275.84, 142,522.02 and 57,963.63

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Solution

The fourth proportional to 103,275.84, 142,522.02 and 57,963.63 is: 79,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,275.84 : 142,522.02 = 57,963.63 : x
  2. Step 2: Convert to fraction form
    103,275.84/142,522.02 = 57,963.63/x
  3. Step 3: Cross multiply
    103,275.84x = 142,522.02 × 57,963.63
  4. Step 4: Simplify right side
    103,275.84x = 8,261,093,634.13
  5. Step 5: Solve for x
    x = 8,261,093,634.13/103,275.84
  6. Step 6: Final answer
    x = 79,990.57

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Double scale
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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.