Home / 131,212.32-181,073.58-74,622.48

Finding the Fourth Proportional to 131,212.32, 181,073.58 and 74,622.48

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Solution

The fourth proportional to 131,212.32, 181,073.58 and 74,622.48 is: 102,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,212.32 : 181,073.58 = 74,622.48 : x
  2. Step 2: Convert to fraction form
    131,212.32/181,073.58 = 74,622.48/x
  3. Step 3: Cross multiply
    131,212.32x = 181,073.58 × 74,622.48
  4. Step 4: Simplify right side
    131,212.32x = 13,512,159,602.08
  5. Step 5: Solve for x
    x = 13,512,159,602.08/131,212.32
  6. Step 6: Final answer
    x = 102,979.35

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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.