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Finding the Fourth Proportional to 131,803.64, 181,857.66 and 74,444.12

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Solution

The fourth proportional to 131,803.64, 181,857.66 and 74,444.12 is: 102,715.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,803.64 : 181,857.66 = 74,444.12 : x
  2. Step 2: Convert to fraction form
    131,803.64/181,857.66 = 74,444.12/x
  3. Step 3: Cross multiply
    131,803.64x = 181,857.66 × 74,444.12
  4. Step 4: Simplify right side
    131,803.64x = 13,538,233,463.96
  5. Step 5: Solve for x
    x = 13,538,233,463.96/131,803.64
  6. Step 6: Final answer
    x = 102,715.17

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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.