Home / 102,836.81-141,903.83-57,510.11

Finding the Fourth Proportional to 102,836.81, 141,903.83 and 57,510.11

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Solution

The fourth proportional to 102,836.81, 141,903.83 and 57,510.11 is: 79,357.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,836.81 : 141,903.83 = 57,510.11 : x
  2. Step 2: Convert to fraction form
    102,836.81/141,903.83 = 57,510.11/x
  3. Step 3: Cross multiply
    102,836.81x = 141,903.83 × 57,510.11
  4. Step 4: Simplify right side
    102,836.81x = 8,160,904,585.17
  5. Step 5: Solve for x
    x = 8,160,904,585.17/102,836.81
  6. Step 6: Final answer
    x = 79,357.82

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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.