Home / 105,453.77-145,526.21-57,707.12

Finding the Fourth Proportional to 105,453.77, 145,526.21 and 57,707.12

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Solution

The fourth proportional to 105,453.77, 145,526.21 and 57,707.12 is: 79,635.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,453.77 : 145,526.21 = 57,707.12 : x
  2. Step 2: Convert to fraction form
    105,453.77/145,526.21 = 57,707.12/x
  3. Step 3: Cross multiply
    105,453.77x = 145,526.21 × 57,707.12
  4. Step 4: Simplify right side
    105,453.77x = 8,397,897,447.45
  5. Step 5: Solve for x
    x = 8,397,897,447.45/105,453.77
  6. Step 6: Final answer
    x = 79,635.82

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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.