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Finding the Fourth Proportional to 113,291.77, 156,325.13 and 65,549.57

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Solution

The fourth proportional to 113,291.77, 156,325.13 and 65,549.57 is: 90,448.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,291.77 : 156,325.13 = 65,549.57 : x
  2. Step 2: Convert to fraction form
    113,291.77/156,325.13 = 65,549.57/x
  3. Step 3: Cross multiply
    113,291.77x = 156,325.13 × 65,549.57
  4. Step 4: Simplify right side
    113,291.77x = 10,247,044,723.95
  5. Step 5: Solve for x
    x = 10,247,044,723.95/113,291.77
  6. Step 6: Final answer
    x = 90,448.27

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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.