Home / 120,429.60-180,666.72-53,872.32

Finding the Fourth Proportional to 120,429.60, 180,666.72 and 53,872.32

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Solution

The fourth proportional to 120,429.60, 180,666.72 and 53,872.32 is: 80,818.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,429.60 : 180,666.72 = 53,872.32 : x
  2. Step 2: Convert to fraction form
    120,429.60/180,666.72 = 53,872.32/x
  3. Step 3: Cross multiply
    120,429.60x = 180,666.72 × 53,872.32
  4. Step 4: Simplify right side
    120,429.60x = 9,732,935,353.19
  5. Step 5: Solve for x
    x = 9,732,935,353.19/120,429.60
  6. Step 6: Final answer
    x = 80,818.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.