Home / 113,133.14-156,114.62-65,389.58

Finding the Fourth Proportional to 113,133.14, 156,114.62 and 65,389.58

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Solution

The fourth proportional to 113,133.14, 156,114.62 and 65,389.58 is: 90,232.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,133.14 : 156,114.62 = 65,389.58 : x
  2. Step 2: Convert to fraction form
    113,133.14/156,114.62 = 65,389.58/x
  3. Step 3: Cross multiply
    113,133.14x = 156,114.62 × 65,389.58
  4. Step 4: Simplify right side
    113,133.14x = 10,208,269,433.66
  5. Step 5: Solve for x
    x = 10,208,269,433.66/113,133.14
  6. Step 6: Final answer
    x = 90,232.35

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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.