Home / 115,931.68-172,334.24-112,526.08

Finding the Fourth Proportional to 115,931.68, 172,334.24 and 112,526.08

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Solution

The fourth proportional to 115,931.68, 172,334.24 and 112,526.08 is: 167,271.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,931.68 : 172,334.24 = 112,526.08 : x
  2. Step 2: Convert to fraction form
    115,931.68/172,334.24 = 112,526.08/x
  3. Step 3: Cross multiply
    115,931.68x = 172,334.24 × 112,526.08
  4. Step 4: Simplify right side
    115,931.68x = 19,392,096,476.98
  5. Step 5: Solve for x
    x = 19,392,096,476.98/115,931.68
  6. Step 6: Final answer
    x = 167,271.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.