Home / 123,416.28-170,313.30-72,429.48

Finding the Fourth Proportional to 123,416.28, 170,313.30 and 72,429.48

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Solution

The fourth proportional to 123,416.28, 170,313.30 and 72,429.48 is: 99,952.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,416.28 : 170,313.30 = 72,429.48 : x
  2. Step 2: Convert to fraction form
    123,416.28/170,313.30 = 72,429.48/x
  3. Step 3: Cross multiply
    123,416.28x = 170,313.30 × 72,429.48
  4. Step 4: Simplify right side
    123,416.28x = 12,335,703,756.08
  5. Step 5: Solve for x
    x = 12,335,703,756.08/123,416.28
  6. Step 6: Final answer
    x = 99,952.00

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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.