Home / 120,177.36-180,250.34-31,437.68

Finding the Fourth Proportional to 120,177.36, 180,250.34 and 31,437.68

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Solution

The fourth proportional to 120,177.36, 180,250.34 and 31,437.68 is: 47,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,177.36 : 180,250.34 = 31,437.68 : x
  2. Step 2: Convert to fraction form
    120,177.36/180,250.34 = 31,437.68/x
  3. Step 3: Cross multiply
    120,177.36x = 180,250.34 × 31,437.68
  4. Step 4: Simplify right side
    120,177.36x = 5,666,651,450.37
  5. Step 5: Solve for x
    x = 5,666,651,450.37/120,177.36
  6. Step 6: Final answer
    x = 47,152.40

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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.