Home / 131,525.60-181,501.64-74,164.40

Finding the Fourth Proportional to 131,525.60, 181,501.64 and 74,164.40

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Solution

The fourth proportional to 131,525.60, 181,501.64 and 74,164.40 is: 102,344.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,525.60 : 181,501.64 = 74,164.40 : x
  2. Step 2: Convert to fraction form
    131,525.60/181,501.64 = 74,164.40/x
  3. Step 3: Cross multiply
    131,525.60x = 181,501.64 × 74,164.40
  4. Step 4: Simplify right side
    131,525.60x = 13,460,960,229.62
  5. Step 5: Solve for x
    x = 13,460,960,229.62/131,525.60
  6. Step 6: Final answer
    x = 102,344.79

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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.