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Finding the Fourth Proportional to 122,888.80, 184,404.90 and 51,807.12

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Solution

The fourth proportional to 122,888.80, 184,404.90 and 51,807.12 is: 77,740.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,888.80 : 184,404.90 = 51,807.12 : x
  2. Step 2: Convert to fraction form
    122,888.80/184,404.90 = 51,807.12/x
  3. Step 3: Cross multiply
    122,888.80x = 184,404.90 × 51,807.12
  4. Step 4: Simplify right side
    122,888.80x = 9,553,486,782.89
  5. Step 5: Solve for x
    x = 9,553,486,782.89/122,888.80
  6. Step 6: Final answer
    x = 77,740.91

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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.