Home / 113,465.08-156,579.60-71,047

Finding the Fourth Proportional to 113,465.08, 156,579.60 and 71,047

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Solution

The fourth proportional to 113,465.08, 156,579.60 and 71,047 is: 98,043.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,465.08 : 156,579.60 = 71,047 : x
  2. Step 2: Convert to fraction form
    113,465.08/156,579.60 = 71,047/x
  3. Step 3: Cross multiply
    113,465.08x = 156,579.60 × 71,047
  4. Step 4: Simplify right side
    113,465.08x = 11,124,510,841.20
  5. Step 5: Solve for x
    x = 11,124,510,841.20/113,465.08
  6. Step 6: Final answer
    x = 98,043.48

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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.