Home / 256,681.14-385,087.30-106,871.64

Finding the Fourth Proportional to 256,681.14, 385,087.30 and 106,871.64

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Solution

The fourth proportional to 256,681.14, 385,087.30 and 106,871.64 is: 160,334.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,681.14 : 385,087.30 = 106,871.64 : x
  2. Step 2: Convert to fraction form
    256,681.14/385,087.30 = 106,871.64/x
  3. Step 3: Cross multiply
    256,681.14x = 385,087.30 × 106,871.64
  4. Step 4: Simplify right side
    256,681.14x = 41,154,911,294.17
  5. Step 5: Solve for x
    x = 41,154,911,294.17/256,681.14
  6. Step 6: Final answer
    x = 160,334.77

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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.