Home / 145,224.32-200,405.76-81,559.04

Finding the Fourth Proportional to 145,224.32, 200,405.76 and 81,559.04

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Solution

The fourth proportional to 145,224.32, 200,405.76 and 81,559.04 is: 112,549.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,224.32 : 200,405.76 = 81,559.04 : x
  2. Step 2: Convert to fraction form
    145,224.32/200,405.76 = 81,559.04/x
  3. Step 3: Cross multiply
    145,224.32x = 200,405.76 × 81,559.04
  4. Step 4: Simplify right side
    145,224.32x = 16,344,901,396.07
  5. Step 5: Solve for x
    x = 16,344,901,396.07/145,224.32
  6. Step 6: Final answer
    x = 112,549.34

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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.