Home / 131,011.45-180,612.73-110,787.19

Finding the Fourth Proportional to 131,011.45, 180,612.73 and 110,787.19

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Solution

The fourth proportional to 131,011.45, 180,612.73 and 110,787.19 is: 152,731.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,011.45 : 180,612.73 = 110,787.19 : x
  2. Step 2: Convert to fraction form
    131,011.45/180,612.73 = 110,787.19/x
  3. Step 3: Cross multiply
    131,011.45x = 180,612.73 × 110,787.19
  4. Step 4: Simplify right side
    131,011.45x = 20,009,576,834.93
  5. Step 5: Solve for x
    x = 20,009,576,834.93/131,011.45
  6. Step 6: Final answer
    x = 152,731.51

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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.