Home / 145,528.08-200,826.92-81,866.32

Finding the Fourth Proportional to 145,528.08, 200,826.92 and 81,866.32

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Solution

The fourth proportional to 145,528.08, 200,826.92 and 81,866.32 is: 112,974.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,528.08 : 200,826.92 = 81,866.32 : x
  2. Step 2: Convert to fraction form
    145,528.08/200,826.92 = 81,866.32/x
  3. Step 3: Cross multiply
    145,528.08x = 200,826.92 × 81,866.32
  4. Step 4: Simplify right side
    145,528.08x = 16,440,960,897.33
  5. Step 5: Solve for x
    x = 16,440,960,897.33/145,528.08
  6. Step 6: Final answer
    x = 112,974.49

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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.