Home / 109,430.56-150,988.46-66,409.08

Finding the Fourth Proportional to 109,430.56, 150,988.46 and 66,409.08

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Solution

The fourth proportional to 109,430.56, 150,988.46 and 66,409.08 is: 91,628.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,430.56 : 150,988.46 = 66,409.08 : x
  2. Step 2: Convert to fraction form
    109,430.56/150,988.46 = 66,409.08/x
  3. Step 3: Cross multiply
    109,430.56x = 150,988.46 × 66,409.08
  4. Step 4: Simplify right side
    109,430.56x = 10,027,004,719.22
  5. Step 5: Solve for x
    x = 10,027,004,719.22/109,430.56
  6. Step 6: Final answer
    x = 91,628.93

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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.