Home / 105,453.68-145,525.86-57,707.01

Finding the Fourth Proportional to 105,453.68, 145,525.86 and 57,707.01

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Solution

The fourth proportional to 105,453.68, 145,525.86 and 57,707.01 is: 79,635.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,453.68 : 145,525.86 = 57,707.01 : x
  2. Step 2: Convert to fraction form
    105,453.68/145,525.86 = 57,707.01/x
  3. Step 3: Cross multiply
    105,453.68x = 145,525.86 × 57,707.01
  4. Step 4: Simplify right side
    105,453.68x = 8,397,862,258.28
  5. Step 5: Solve for x
    x = 8,397,862,258.28/105,453.68
  6. Step 6: Final answer
    x = 79,635.56

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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.