Home / 115,454.10-158,715.04-99,261.75

Finding the Fourth Proportional to 115,454.10, 158,715.04 and 99,261.75

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Solution

The fourth proportional to 115,454.10, 158,715.04 and 99,261.75 is: 136,455.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,454.10 : 158,715.04 = 99,261.75 : x
  2. Step 2: Convert to fraction form
    115,454.10/158,715.04 = 99,261.75/x
  3. Step 3: Cross multiply
    115,454.10x = 158,715.04 × 99,261.75
  4. Step 4: Simplify right side
    115,454.10x = 15,754,332,621.72
  5. Step 5: Solve for x
    x = 15,754,332,621.72/115,454.10
  6. Step 6: Final answer
    x = 136,455.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.