Home / 145,126.14-200,272.41-81,462.30

Finding the Fourth Proportional to 145,126.14, 200,272.41 and 81,462.30

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Solution

The fourth proportional to 145,126.14, 200,272.41 and 81,462.30 is: 112,417.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,126.14 : 200,272.41 = 81,462.30 : x
  2. Step 2: Convert to fraction form
    145,126.14/200,272.41 = 81,462.30/x
  3. Step 3: Cross multiply
    145,126.14x = 200,272.41 × 81,462.30
  4. Step 4: Simplify right side
    145,126.14x = 16,314,651,145.14
  5. Step 5: Solve for x
    x = 16,314,651,145.14/145,126.14
  6. Step 6: Final answer
    x = 112,417.04

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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.