Home / 131,977.11-182,128.46-71,547.74

Finding the Fourth Proportional to 131,977.11, 182,128.46 and 71,547.74

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Solution

The fourth proportional to 131,977.11, 182,128.46 and 71,547.74 is: 98,735.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,977.11 : 182,128.46 = 71,547.74 : x
  2. Step 2: Convert to fraction form
    131,977.11/182,128.46 = 71,547.74/x
  3. Step 3: Cross multiply
    131,977.11x = 182,128.46 × 71,547.74
  4. Step 4: Simplify right side
    131,977.11x = 13,030,879,702.68
  5. Step 5: Solve for x
    x = 13,030,879,702.68/131,977.11
  6. Step 6: Final answer
    x = 98,735.91

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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.