Home / 117,005.10-175,507.65-81,575.70

Finding the Fourth Proportional to 117,005.10, 175,507.65 and 81,575.70

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Solution

The fourth proportional to 117,005.10, 175,507.65 and 81,575.70 is: 122,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,005.10 : 175,507.65 = 81,575.70 : x
  2. Step 2: Convert to fraction form
    117,005.10/175,507.65 = 81,575.70/x
  3. Step 3: Cross multiply
    117,005.10x = 175,507.65 × 81,575.70
  4. Step 4: Simplify right side
    117,005.10x = 14,317,159,404.11
  5. Step 5: Solve for x
    x = 14,317,159,404.11/117,005.10
  6. Step 6: Final answer
    x = 122,363.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.