Home / 131,505.04-181,467.84-74,146.40

Finding the Fourth Proportional to 131,505.04, 181,467.84 and 74,146.40

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Solution

The fourth proportional to 131,505.04, 181,467.84 and 74,146.40 is: 102,316.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,505.04 : 181,467.84 = 74,146.40 : x
  2. Step 2: Convert to fraction form
    131,505.04/181,467.84 = 74,146.40/x
  3. Step 3: Cross multiply
    131,505.04x = 181,467.84 × 74,146.40
  4. Step 4: Simplify right side
    131,505.04x = 13,455,187,051.78
  5. Step 5: Solve for x
    x = 13,455,187,051.78/131,505.04
  6. Step 6: Final answer
    x = 102,316.89

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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.