Home / 158,141.05-218,239.89-86,521.11

Finding the Fourth Proportional to 158,141.05, 218,239.89 and 86,521.11

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Solution

The fourth proportional to 158,141.05, 218,239.89 and 86,521.11 is: 119,402.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,141.05 : 218,239.89 = 86,521.11 : x
  2. Step 2: Convert to fraction form
    158,141.05/218,239.89 = 86,521.11/x
  3. Step 3: Cross multiply
    158,141.05x = 218,239.89 × 86,521.11
  4. Step 4: Simplify right side
    158,141.05x = 18,882,357,529.08
  5. Step 5: Solve for x
    x = 18,882,357,529.08/158,141.05
  6. Step 6: Final answer
    x = 119,402.00

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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.