Home / 105,236.94-145,227.07-57,491.08

Finding the Fourth Proportional to 105,236.94, 145,227.07 and 57,491.08

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Solution

The fourth proportional to 105,236.94, 145,227.07 and 57,491.08 is: 79,337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,236.94 : 145,227.07 = 57,491.08 : x
  2. Step 2: Convert to fraction form
    105,236.94/145,227.07 = 57,491.08/x
  3. Step 3: Cross multiply
    105,236.94x = 145,227.07 × 57,491.08
  4. Step 4: Simplify right side
    105,236.94x = 8,349,260,955.81
  5. Step 5: Solve for x
    x = 8,349,260,955.81/105,236.94
  6. Step 6: Final answer
    x = 79,337.74

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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.