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Finding the Fourth Proportional to 162,480.47, 243,840.48 and 77,091.68

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Solution

The fourth proportional to 162,480.47, 243,840.48 and 77,091.68 is: 115,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,480.47 : 243,840.48 = 77,091.68 : x
  2. Step 2: Convert to fraction form
    162,480.47/243,840.48 = 77,091.68/x
  3. Step 3: Cross multiply
    162,480.47x = 243,840.48 × 77,091.68
  4. Step 4: Simplify right side
    162,480.47x = 18,798,072,255.21
  5. Step 5: Solve for x
    x = 18,798,072,255.21/162,480.47
  6. Step 6: Final answer
    x = 115,694.35

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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.