Home / 142,738.04-196,899.14-112,411.64

Finding the Fourth Proportional to 142,738.04, 196,899.14 and 112,411.64

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Solution

The fourth proportional to 142,738.04, 196,899.14 and 112,411.64 is: 155,065.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,738.04 : 196,899.14 = 112,411.64 : x
  2. Step 2: Convert to fraction form
    142,738.04/196,899.14 = 112,411.64/x
  3. Step 3: Cross multiply
    142,738.04x = 196,899.14 × 112,411.64
  4. Step 4: Simplify right side
    142,738.04x = 22,133,755,241.99
  5. Step 5: Solve for x
    x = 22,133,755,241.99/142,738.04
  6. Step 6: Final answer
    x = 155,065.57

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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.