Home / 145,072.27-200,214.12-81,410.32

Finding the Fourth Proportional to 145,072.27, 200,214.12 and 81,410.32

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Solution

The fourth proportional to 145,072.27, 200,214.12 and 81,410.32 is: 112,354.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,072.27 : 200,214.12 = 81,410.32 : x
  2. Step 2: Convert to fraction form
    145,072.27/200,214.12 = 81,410.32/x
  3. Step 3: Cross multiply
    145,072.27x = 200,214.12 × 81,410.32
  4. Step 4: Simplify right side
    145,072.27x = 16,299,495,577.72
  5. Step 5: Solve for x
    x = 16,299,495,577.72/145,072.27
  6. Step 6: Final answer
    x = 112,354.32

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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.