Home / 120,051.28-180,077.04-31,304.70

Finding the Fourth Proportional to 120,051.28, 180,077.04 and 31,304.70

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Solution

The fourth proportional to 120,051.28, 180,077.04 and 31,304.70 is: 46,957.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,051.28 : 180,077.04 = 31,304.70 : x
  2. Step 2: Convert to fraction form
    120,051.28/180,077.04 = 31,304.70/x
  3. Step 3: Cross multiply
    120,051.28x = 180,077.04 × 31,304.70
  4. Step 4: Simplify right side
    120,051.28x = 5,637,257,714.09
  5. Step 5: Solve for x
    x = 5,637,257,714.09/120,051.28
  6. Step 6: Final answer
    x = 46,957.08

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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.