Home / 143,213.51-197,602.82-86,623.67

Finding the Fourth Proportional to 143,213.51, 197,602.82 and 86,623.67

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Solution

The fourth proportional to 143,213.51, 197,602.82 and 86,623.67 is: 119,521.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,213.51 : 197,602.82 = 86,623.67 : x
  2. Step 2: Convert to fraction form
    143,213.51/197,602.82 = 86,623.67/x
  3. Step 3: Cross multiply
    143,213.51x = 197,602.82 × 86,623.67
  4. Step 4: Simplify right side
    143,213.51x = 17,117,080,482.74
  5. Step 5: Solve for x
    x = 17,117,080,482.74/143,213.51
  6. Step 6: Final answer
    x = 119,521.41

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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.