Home / 113,890.80-157,165.56-63,588.72

Finding the Fourth Proportional to 113,890.80, 157,165.56 and 63,588.72

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Solution

The fourth proportional to 113,890.80, 157,165.56 and 63,588.72 is: 87,750.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,890.80 : 157,165.56 = 63,588.72 : x
  2. Step 2: Convert to fraction form
    113,890.80/157,165.56 = 63,588.72/x
  3. Step 3: Cross multiply
    113,890.80x = 157,165.56 × 63,588.72
  4. Step 4: Simplify right side
    113,890.80x = 9,993,956,788.48
  5. Step 5: Solve for x
    x = 9,993,956,788.48/113,890.80
  6. Step 6: Final answer
    x = 87,750.34

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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.