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Finding the Fourth Proportional to 123,055.90, 169,820.70 and 69,337.96

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Solution

The fourth proportional to 123,055.90, 169,820.70 and 69,337.96 is: 95,688.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,055.90 : 169,820.70 = 69,337.96 : x
  2. Step 2: Convert to fraction form
    123,055.90/169,820.70 = 69,337.96/x
  3. Step 3: Cross multiply
    123,055.90x = 169,820.70 × 69,337.96
  4. Step 4: Simplify right side
    123,055.90x = 11,775,020,903.77
  5. Step 5: Solve for x
    x = 11,775,020,903.77/123,055.90
  6. Step 6: Final answer
    x = 95,688.39

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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.