Home / 113,509.32-156,661.54-86,600.98

Finding the Fourth Proportional to 113,509.32, 156,661.54 and 86,600.98

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Solution

The fourth proportional to 113,509.32, 156,661.54 and 86,600.98 is: 119,523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,509.32 : 156,661.54 = 86,600.98 : x
  2. Step 2: Convert to fraction form
    113,509.32/156,661.54 = 86,600.98/x
  3. Step 3: Cross multiply
    113,509.32x = 156,661.54 × 86,600.98
  4. Step 4: Simplify right side
    113,509.32x = 13,567,043,358.76
  5. Step 5: Solve for x
    x = 13,567,043,358.76/113,509.32
  6. Step 6: Final answer
    x = 119,523.61

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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.