Home / 113,534.06-156,695.40-65,815.07

Finding the Fourth Proportional to 113,534.06, 156,695.40 and 65,815.07

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Solution

The fourth proportional to 113,534.06, 156,695.40 and 65,815.07 is: 90,835.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,534.06 : 156,695.40 = 65,815.07 : x
  2. Step 2: Convert to fraction form
    113,534.06/156,695.40 = 65,815.07/x
  3. Step 3: Cross multiply
    113,534.06x = 156,695.40 × 65,815.07
  4. Step 4: Simplify right side
    113,534.06x = 10,312,917,936.20
  5. Step 5: Solve for x
    x = 10,312,917,936.20/113,534.06
  6. Step 6: Final answer
    x = 90,835.46

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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.