Home / 102,666.65-141,678.47-57,345.27

Finding the Fourth Proportional to 102,666.65, 141,678.47 and 57,345.27

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Solution

The fourth proportional to 102,666.65, 141,678.47 and 57,345.27 is: 79,135.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,666.65 : 141,678.47 = 57,345.27 : x
  2. Step 2: Convert to fraction form
    102,666.65/141,678.47 = 57,345.27/x
  3. Step 3: Cross multiply
    102,666.65x = 141,678.47 × 57,345.27
  4. Step 4: Simplify right side
    102,666.65x = 8,124,590,258.70
  5. Step 5: Solve for x
    x = 8,124,590,258.70/102,666.65
  6. Step 6: Final answer
    x = 79,135.64

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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.