Home / 74,124.12-102,306.73-68,146.32

Finding the Fourth Proportional to 74,124.12, 102,306.73 and 68,146.32

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Solution

The fourth proportional to 74,124.12, 102,306.73 and 68,146.32 is: 94,056.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,124.12 : 102,306.73 = 68,146.32 : x
  2. Step 2: Convert to fraction form
    74,124.12/102,306.73 = 68,146.32/x
  3. Step 3: Cross multiply
    74,124.12x = 102,306.73 × 68,146.32
  4. Step 4: Simplify right side
    74,124.12x = 6,971,827,160.73
  5. Step 5: Solve for x
    x = 6,971,827,160.73/74,124.12
  6. Step 6: Final answer
    x = 94,056.12

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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.