Home / 135,614.16-187,158.58-75,203.72

Finding the Fourth Proportional to 135,614.16, 187,158.58 and 75,203.72

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Solution

The fourth proportional to 135,614.16, 187,158.58 and 75,203.72 is: 103,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,614.16 : 187,158.58 = 75,203.72 : x
  2. Step 2: Convert to fraction form
    135,614.16/187,158.58 = 75,203.72/x
  3. Step 3: Cross multiply
    135,614.16x = 187,158.58 × 75,203.72
  4. Step 4: Simplify right side
    135,614.16x = 14,075,021,445.92
  5. Step 5: Solve for x
    x = 14,075,021,445.92/135,614.16
  6. Step 6: Final answer
    x = 103,787.26

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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.