Home / 131,826.10-181,931.22-74,475.95

Finding the Fourth Proportional to 131,826.10, 181,931.22 and 74,475.95

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Solution

The fourth proportional to 131,826.10, 181,931.22 and 74,475.95 is: 102,783.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,826.10 : 181,931.22 = 74,475.95 : x
  2. Step 2: Convert to fraction form
    131,826.10/181,931.22 = 74,475.95/x
  3. Step 3: Cross multiply
    131,826.10x = 181,931.22 × 74,475.95
  4. Step 4: Simplify right side
    131,826.10x = 13,549,500,444.16
  5. Step 5: Solve for x
    x = 13,549,500,444.16/131,826.10
  6. Step 6: Final answer
    x = 102,783.14

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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.