Home / 102,681.15-141,698.88-57,363.68

Finding the Fourth Proportional to 102,681.15, 141,698.88 and 57,363.68

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Solution

The fourth proportional to 102,681.15, 141,698.88 and 57,363.68 is: 79,161.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,681.15 : 141,698.88 = 57,363.68 : x
  2. Step 2: Convert to fraction form
    102,681.15/141,698.88 = 57,363.68/x
  3. Step 3: Cross multiply
    102,681.15x = 141,698.88 × 57,363.68
  4. Step 4: Simplify right side
    102,681.15x = 8,128,369,208.68
  5. Step 5: Solve for x
    x = 8,128,369,208.68/102,681.15
  6. Step 6: Final answer
    x = 79,161.26

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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.