Home / 113,145.24-156,141.36-70,728.84

Finding the Fourth Proportional to 113,145.24, 156,141.36 and 70,728.84

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Solution

The fourth proportional to 113,145.24, 156,141.36 and 70,728.84 is: 97,606.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,145.24 : 156,141.36 = 70,728.84 : x
  2. Step 2: Convert to fraction form
    113,145.24/156,141.36 = 70,728.84/x
  3. Step 3: Cross multiply
    113,145.24x = 156,141.36 × 70,728.84
  4. Step 4: Simplify right side
    113,145.24x = 11,043,697,268.82
  5. Step 5: Solve for x
    x = 11,043,697,268.82/113,145.24
  6. Step 6: Final answer
    x = 97,606.38

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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.