Home / 105,748.95-145,883.25-63,299.28

Finding the Fourth Proportional to 105,748.95, 145,883.25 and 63,299.28

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Solution

The fourth proportional to 105,748.95, 145,883.25 and 63,299.28 is: 87,322.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,748.95 : 145,883.25 = 63,299.28 : x
  2. Step 2: Convert to fraction form
    105,748.95/145,883.25 = 63,299.28/x
  3. Step 3: Cross multiply
    105,748.95x = 145,883.25 × 63,299.28
  4. Step 4: Simplify right side
    105,748.95x = 9,234,304,689.06
  5. Step 5: Solve for x
    x = 9,234,304,689.06/105,748.95
  6. Step 6: Final answer
    x = 87,322.90

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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.