Home / 132,431.08-182,758.32-72,005.80

Finding the Fourth Proportional to 132,431.08, 182,758.32 and 72,005.80

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Solution

The fourth proportional to 132,431.08, 182,758.32 and 72,005.80 is: 99,369.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,431.08 : 182,758.32 = 72,005.80 : x
  2. Step 2: Convert to fraction form
    132,431.08/182,758.32 = 72,005.80/x
  3. Step 3: Cross multiply
    132,431.08x = 182,758.32 × 72,005.80
  4. Step 4: Simplify right side
    132,431.08x = 13,159,659,038.26
  5. Step 5: Solve for x
    x = 13,159,659,038.26/132,431.08
  6. Step 6: Final answer
    x = 99,369.87

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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.