Home / 162,078.10-243,117.15-122,712.10

Finding the Fourth Proportional to 162,078.10, 243,117.15 and 122,712.10

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Solution

The fourth proportional to 162,078.10, 243,117.15 and 122,712.10 is: 184,068.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,078.10 : 243,117.15 = 122,712.10 : x
  2. Step 2: Convert to fraction form
    162,078.10/243,117.15 = 122,712.10/x
  3. Step 3: Cross multiply
    162,078.10x = 243,117.15 × 122,712.10
  4. Step 4: Simplify right side
    162,078.10x = 29,833,416,022.52
  5. Step 5: Solve for x
    x = 29,833,416,022.52/162,078.10
  6. Step 6: Final answer
    x = 184,068.15

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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.