Home / 100,327.95-149,607.68-99,428.58

Finding the Fourth Proportional to 100,327.95, 149,607.68 and 99,428.58

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Solution

The fourth proportional to 100,327.95, 149,607.68 and 99,428.58 is: 148,266.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,327.95 : 149,607.68 = 99,428.58 : x
  2. Step 2: Convert to fraction form
    100,327.95/149,607.68 = 99,428.58/x
  3. Step 3: Cross multiply
    100,327.95x = 149,607.68 × 99,428.58
  4. Step 4: Simplify right side
    100,327.95x = 14,875,278,682.35
  5. Step 5: Solve for x
    x = 14,875,278,682.35/100,327.95
  6. Step 6: Final answer
    x = 148,266.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.