Home / 113,539.12-156,684.02-63,238.12

Finding the Fourth Proportional to 113,539.12, 156,684.02 and 63,238.12

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Solution

The fourth proportional to 113,539.12, 156,684.02 and 63,238.12 is: 87,268.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,539.12 : 156,684.02 = 63,238.12 : x
  2. Step 2: Convert to fraction form
    113,539.12/156,684.02 = 63,238.12/x
  3. Step 3: Cross multiply
    113,539.12x = 156,684.02 × 63,238.12
  4. Step 4: Simplify right side
    113,539.12x = 9,908,402,858.84
  5. Step 5: Solve for x
    x = 9,908,402,858.84/113,539.12
  6. Step 6: Final answer
    x = 87,268.62

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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.