Home / 102,904.23-142,008.39-57,582.30

Finding the Fourth Proportional to 102,904.23, 142,008.39 and 57,582.30

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Solution

The fourth proportional to 102,904.23, 142,008.39 and 57,582.30 is: 79,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,904.23 : 142,008.39 = 57,582.30 : x
  2. Step 2: Convert to fraction form
    102,904.23/142,008.39 = 57,582.30/x
  3. Step 3: Cross multiply
    102,904.23x = 142,008.39 × 57,582.30
  4. Step 4: Simplify right side
    102,904.23x = 8,177,169,715.50
  5. Step 5: Solve for x
    x = 8,177,169,715.50/102,904.23
  6. Step 6: Final answer
    x = 79,463.88

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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.