Home / 131,826.44-181,931.70-74,476.30

Finding the Fourth Proportional to 131,826.44, 181,931.70 and 74,476.30

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Solution

The fourth proportional to 131,826.44, 181,931.70 and 74,476.30 is: 102,783.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,826.44 : 181,931.70 = 74,476.30 : x
  2. Step 2: Convert to fraction form
    131,826.44/181,931.70 = 74,476.30/x
  3. Step 3: Cross multiply
    131,826.44x = 181,931.70 × 74,476.30
  4. Step 4: Simplify right side
    131,826.44x = 13,549,599,868.71
  5. Step 5: Solve for x
    x = 13,549,599,868.71/131,826.44
  6. Step 6: Final answer
    x = 102,783.63

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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.