Home / 102,903.49-154,355.10-67,587.76

Finding the Fourth Proportional to 102,903.49, 154,355.10 and 67,587.76

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Solution

The fourth proportional to 102,903.49, 154,355.10 and 67,587.76 is: 101,381.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,903.49 : 154,355.10 = 67,587.76 : x
  2. Step 2: Convert to fraction form
    102,903.49/154,355.10 = 67,587.76/x
  3. Step 3: Cross multiply
    102,903.49x = 154,355.10 × 67,587.76
  4. Step 4: Simplify right side
    102,903.49x = 10,432,515,453.58
  5. Step 5: Solve for x
    x = 10,432,515,453.58/102,903.49
  6. Step 6: Final answer
    x = 101,381.55

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1.5x scale

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.