Home / 113,723.10-156,938.67-66,005.10

Finding the Fourth Proportional to 113,723.10, 156,938.67 and 66,005.10

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Solution

The fourth proportional to 113,723.10, 156,938.67 and 66,005.10 is: 91,087.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,723.10 : 156,938.67 = 66,005.10 : x
  2. Step 2: Convert to fraction form
    113,723.10/156,938.67 = 66,005.10/x
  3. Step 3: Cross multiply
    113,723.10x = 156,938.67 × 66,005.10
  4. Step 4: Simplify right side
    113,723.10x = 10,358,752,607.22
  5. Step 5: Solve for x
    x = 10,358,752,607.22/113,723.10
  6. Step 6: Final answer
    x = 91,087.50

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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.