Home / 207,913.79-286,965.50-131,384.18

Finding the Fourth Proportional to 207,913.79, 286,965.50 and 131,384.18

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Solution

The fourth proportional to 207,913.79, 286,965.50 and 131,384.18 is: 181,338.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,913.79 : 286,965.50 = 131,384.18 : x
  2. Step 2: Convert to fraction form
    207,913.79/286,965.50 = 131,384.18/x
  3. Step 3: Cross multiply
    207,913.79x = 286,965.50 × 131,384.18
  4. Step 4: Simplify right side
    207,913.79x = 37,702,724,814.04
  5. Step 5: Solve for x
    x = 37,702,724,814.04/207,913.79
  6. Step 6: Final answer
    x = 181,338.26

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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.