Home / 122,931.90-184,397.85-84,878.10

Finding the Fourth Proportional to 122,931.90, 184,397.85 and 84,878.10

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Solution

The fourth proportional to 122,931.90, 184,397.85 and 84,878.10 is: 127,317.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,931.90 : 184,397.85 = 84,878.10 : x
  2. Step 2: Convert to fraction form
    122,931.90/184,397.85 = 84,878.10/x
  3. Step 3: Cross multiply
    122,931.90x = 184,397.85 × 84,878.10
  4. Step 4: Simplify right side
    122,931.90x = 15,651,339,152.09
  5. Step 5: Solve for x
    x = 15,651,339,152.09/122,931.90
  6. Step 6: Final answer
    x = 127,317.15

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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.