Home / 94,931.40-142,137.69-68,304

Finding the Fourth Proportional to 94,931.40, 142,137.69 and 68,304

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Solution

The fourth proportional to 94,931.40, 142,137.69 and 68,304 is: 102,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,931.40 : 142,137.69 = 68,304 : x
  2. Step 2: Convert to fraction form
    94,931.40/142,137.69 = 68,304/x
  3. Step 3: Cross multiply
    94,931.40x = 142,137.69 × 68,304
  4. Step 4: Simplify right side
    94,931.40x = 9,708,572,777.76
  5. Step 5: Solve for x
    x = 9,708,572,777.76/94,931.40
  6. Step 6: Final answer
    x = 102,269.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.