Home / 113,215.12-156,224.46-65,461.24

Finding the Fourth Proportional to 113,215.12, 156,224.46 and 65,461.24

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Solution

The fourth proportional to 113,215.12, 156,224.46 and 65,461.24 is: 90,329.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,215.12 : 156,224.46 = 65,461.24 : x
  2. Step 2: Convert to fraction form
    113,215.12/156,224.46 = 65,461.24/x
  3. Step 3: Cross multiply
    113,215.12x = 156,224.46 × 65,461.24
  4. Step 4: Simplify right side
    113,215.12x = 10,226,646,869.93
  5. Step 5: Solve for x
    x = 10,226,646,869.93/113,215.12
  6. Step 6: Final answer
    x = 90,329.34

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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.