Home / 105,453.73-145,526.16-57,707.08

Finding the Fourth Proportional to 105,453.73, 145,526.16 and 57,707.08

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Solution

The fourth proportional to 105,453.73, 145,526.16 and 57,707.08 is: 79,635.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,453.73 : 145,526.16 = 57,707.08 : x
  2. Step 2: Convert to fraction form
    105,453.73/145,526.16 = 57,707.08/x
  3. Step 3: Cross multiply
    105,453.73x = 145,526.16 × 57,707.08
  4. Step 4: Simplify right side
    105,453.73x = 8,397,889,468.68
  5. Step 5: Solve for x
    x = 8,397,889,468.68/105,453.73
  6. Step 6: Final answer
    x = 79,635.77

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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.