Home / 113,050.42-155,977.62-72,787.51

Finding the Fourth Proportional to 113,050.42, 155,977.62 and 72,787.51

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Solution

The fourth proportional to 113,050.42, 155,977.62 and 72,787.51 is: 100,426.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,050.42 : 155,977.62 = 72,787.51 : x
  2. Step 2: Convert to fraction form
    113,050.42/155,977.62 = 72,787.51/x
  3. Step 3: Cross multiply
    113,050.42x = 155,977.62 × 72,787.51
  4. Step 4: Simplify right side
    113,050.42x = 11,353,222,497.55
  5. Step 5: Solve for x
    x = 11,353,222,497.55/113,050.42
  6. Step 6: Final answer
    x = 100,426.19

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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.