Home / 113,199.72-156,216.54-70,782.84

Finding the Fourth Proportional to 113,199.72, 156,216.54 and 70,782.84

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Solution

The fourth proportional to 113,199.72, 156,216.54 and 70,782.84 is: 97,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,199.72 : 156,216.54 = 70,782.84 : x
  2. Step 2: Convert to fraction form
    113,199.72/156,216.54 = 70,782.84/x
  3. Step 3: Cross multiply
    113,199.72x = 156,216.54 × 70,782.84
  4. Step 4: Simplify right side
    113,199.72x = 11,057,450,356.17
  5. Step 5: Solve for x
    x = 11,057,450,356.17/113,199.72
  6. Step 6: Final answer
    x = 97,680.90

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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.