Home / 154,522.72-213,191.40-86,529.52

Finding the Fourth Proportional to 154,522.72, 213,191.40 and 86,529.52

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Solution

The fourth proportional to 154,522.72, 213,191.40 and 86,529.52 is: 119,382.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,522.72 : 213,191.40 = 86,529.52 : x
  2. Step 2: Convert to fraction form
    154,522.72/213,191.40 = 86,529.52/x
  3. Step 3: Cross multiply
    154,522.72x = 213,191.40 × 86,529.52
  4. Step 4: Simplify right side
    154,522.72x = 18,447,349,510.13
  5. Step 5: Solve for x
    x = 18,447,349,510.13/154,522.72
  6. Step 6: Final answer
    x = 119,382.76

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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.