Home / 105,263.28-145,243.26-62,825.76

Finding the Fourth Proportional to 105,263.28, 145,243.26 and 62,825.76

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Solution

The fourth proportional to 105,263.28, 145,243.26 and 62,825.76 is: 86,687.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,263.28 : 145,243.26 = 62,825.76 : x
  2. Step 2: Convert to fraction form
    105,263.28/145,243.26 = 62,825.76/x
  3. Step 3: Cross multiply
    105,263.28x = 145,243.26 × 62,825.76
  4. Step 4: Simplify right side
    105,263.28x = 9,125,018,194.38
  5. Step 5: Solve for x
    x = 9,125,018,194.38/105,263.28
  6. Step 6: Final answer
    x = 86,687.57

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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.