Home / 112,711.84-155,504.58-64,964.16

Finding the Fourth Proportional to 112,711.84, 155,504.58 and 64,964.16

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Solution

The fourth proportional to 112,711.84, 155,504.58 and 64,964.16 is: 89,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,711.84 : 155,504.58 = 64,964.16 : x
  2. Step 2: Convert to fraction form
    112,711.84/155,504.58 = 64,964.16/x
  3. Step 3: Cross multiply
    112,711.84x = 155,504.58 × 64,964.16
  4. Step 4: Simplify right side
    112,711.84x = 10,102,224,172.24
  5. Step 5: Solve for x
    x = 10,102,224,172.24/112,711.84
  6. Step 6: Final answer
    x = 89,628.78

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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.