Home / 123,493.32-170,421.60-66,904.70

Finding the Fourth Proportional to 123,493.32, 170,421.60 and 66,904.70

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Solution

The fourth proportional to 123,493.32, 170,421.60 and 66,904.70 is: 92,328.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,493.32 : 170,421.60 = 66,904.70 : x
  2. Step 2: Convert to fraction form
    123,493.32/170,421.60 = 66,904.70/x
  3. Step 3: Cross multiply
    123,493.32x = 170,421.60 × 66,904.70
  4. Step 4: Simplify right side
    123,493.32x = 11,402,006,021.52
  5. Step 5: Solve for x
    x = 11,402,006,021.52/123,493.32
  6. Step 6: Final answer
    x = 92,328.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.