Home / 113,435.48-156,538.30-63,133.40

Finding the Fourth Proportional to 113,435.48, 156,538.30 and 63,133.40

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Solution

The fourth proportional to 113,435.48, 156,538.30 and 63,133.40 is: 87,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,435.48 : 156,538.30 = 63,133.40 : x
  2. Step 2: Convert to fraction form
    113,435.48/156,538.30 = 63,133.40/x
  3. Step 3: Cross multiply
    113,435.48x = 156,538.30 × 63,133.40
  4. Step 4: Simplify right side
    113,435.48x = 9,882,795,109.22
  5. Step 5: Solve for x
    x = 9,882,795,109.22/113,435.48
  6. Step 6: Final answer
    x = 87,122.61

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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.