Home / 131,439.60-181,405.44-74,856.24

Finding the Fourth Proportional to 131,439.60, 181,405.44 and 74,856.24

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Solution

The fourth proportional to 131,439.60, 181,405.44 and 74,856.24 is: 103,312.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,439.60 : 181,405.44 = 74,856.24 : x
  2. Step 2: Convert to fraction form
    131,439.60/181,405.44 = 74,856.24/x
  3. Step 3: Cross multiply
    131,439.60x = 181,405.44 × 74,856.24
  4. Step 4: Simplify right side
    131,439.60x = 13,579,329,153.95
  5. Step 5: Solve for x
    x = 13,579,329,153.95/131,439.60
  6. Step 6: Final answer
    x = 103,312.31

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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.