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Finding the Fourth Proportional to 173,037.80, 259,556.70 and 138,045.80

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Solution

The fourth proportional to 173,037.80, 259,556.70 and 138,045.80 is: 207,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,037.80 : 259,556.70 = 138,045.80 : x
  2. Step 2: Convert to fraction form
    173,037.80/259,556.70 = 138,045.80/x
  3. Step 3: Cross multiply
    173,037.80x = 259,556.70 × 138,045.80
  4. Step 4: Simplify right side
    173,037.80x = 35,830,712,296.86
  5. Step 5: Solve for x
    x = 35,830,712,296.86/173,037.80
  6. Step 6: Final answer
    x = 207,068.70

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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.