Home / 142,709.04-196,859.16-112,382.64

Finding the Fourth Proportional to 142,709.04, 196,859.16 and 112,382.64

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Solution

The fourth proportional to 142,709.04, 196,859.16 and 112,382.64 is: 155,025.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,709.04 : 196,859.16 = 112,382.64 : x
  2. Step 2: Convert to fraction form
    142,709.04/196,859.16 = 112,382.64/x
  3. Step 3: Cross multiply
    142,709.04x = 196,859.16 × 112,382.64
  4. Step 4: Simplify right side
    142,709.04x = 22,123,552,108.98
  5. Step 5: Solve for x
    x = 22,123,552,108.98/142,709.04
  6. Step 6: Final answer
    x = 155,025.58

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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.