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Finding the Fourth Proportional to 180,139.68, 270,063.63 and 75,037.32

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Solution

The fourth proportional to 180,139.68, 270,063.63 and 75,037.32 is: 112,495.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,139.68 : 270,063.63 = 75,037.32 : x
  2. Step 2: Convert to fraction form
    180,139.68/270,063.63 = 75,037.32/x
  3. Step 3: Cross multiply
    180,139.68x = 270,063.63 × 75,037.32
  4. Step 4: Simplify right side
    180,139.68x = 20,264,851,024.67
  5. Step 5: Solve for x
    x = 20,264,851,024.67/180,139.68
  6. Step 6: Final answer
    x = 112,495.21

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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.