Home / 103,178.04-142,382.73-62,877.09

Finding the Fourth Proportional to 103,178.04, 142,382.73 and 62,877.09

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Solution

The fourth proportional to 103,178.04, 142,382.73 and 62,877.09 is: 86,768.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,178.04 : 142,382.73 = 62,877.09 : x
  2. Step 2: Convert to fraction form
    103,178.04/142,382.73 = 62,877.09/x
  3. Step 3: Cross multiply
    103,178.04x = 142,382.73 × 62,877.09
  4. Step 4: Simplify right side
    103,178.04x = 8,952,611,728.66
  5. Step 5: Solve for x
    x = 8,952,611,728.66/103,178.04
  6. Step 6: Final answer
    x = 86,768.58

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1.5x scale

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.