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Finding the Fourth Proportional to 172,045.08, 257,970.42 and 70,814.93

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Solution

The fourth proportional to 172,045.08, 257,970.42 and 70,814.93 is: 106,182.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,045.08 : 257,970.42 = 70,814.93 : x
  2. Step 2: Convert to fraction form
    172,045.08/257,970.42 = 70,814.93/x
  3. Step 3: Cross multiply
    172,045.08x = 257,970.42 × 70,814.93
  4. Step 4: Simplify right side
    172,045.08x = 18,268,155,944.52
  5. Step 5: Solve for x
    x = 18,268,155,944.52/172,045.08
  6. Step 6: Final answer
    x = 106,182.38

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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.