Home / 154,157.28-212,771.36-93,715.13

Finding the Fourth Proportional to 154,157.28, 212,771.36 and 93,715.13

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Solution

The fourth proportional to 154,157.28, 212,771.36 and 93,715.13 is: 129,347.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,157.28 : 212,771.36 = 93,715.13 : x
  2. Step 2: Convert to fraction form
    154,157.28/212,771.36 = 93,715.13/x
  3. Step 3: Cross multiply
    154,157.28x = 212,771.36 × 93,715.13
  4. Step 4: Simplify right side
    154,157.28x = 19,939,894,833.11
  5. Step 5: Solve for x
    x = 19,939,894,833.11/154,157.28
  6. Step 6: Final answer
    x = 129,347.73

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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.