Home / 131,011.32-180,800.46-74,432.28

Finding the Fourth Proportional to 131,011.32, 180,800.46 and 74,432.28

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Solution

The fourth proportional to 131,011.32, 180,800.46 and 74,432.28 is: 102,719.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,011.32 : 180,800.46 = 74,432.28 : x
  2. Step 2: Convert to fraction form
    131,011.32/180,800.46 = 74,432.28/x
  3. Step 3: Cross multiply
    131,011.32x = 180,800.46 × 74,432.28
  4. Step 4: Simplify right side
    131,011.32x = 13,457,390,462.85
  5. Step 5: Solve for x
    x = 13,457,390,462.85/131,011.32
  6. Step 6: Final answer
    x = 102,719.30

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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.