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Finding the Fourth Proportional to 115,473.60, 159,213.60 and 88,646.40

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Solution

The fourth proportional to 115,473.60, 159,213.60 and 88,646.40 is: 122,224.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,473.60 : 159,213.60 = 88,646.40 : x
  2. Step 2: Convert to fraction form
    115,473.60/159,213.60 = 88,646.40/x
  3. Step 3: Cross multiply
    115,473.60x = 159,213.60 × 88,646.40
  4. Step 4: Simplify right side
    115,473.60x = 14,113,712,471.04
  5. Step 5: Solve for x
    x = 14,113,712,471.04/115,473.60
  6. Step 6: Final answer
    x = 122,224.58

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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.