Home / 108,511.60-149,646.09-74,460.01

Finding the Fourth Proportional to 108,511.60, 149,646.09 and 74,460.01

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Solution

The fourth proportional to 108,511.60, 149,646.09 and 74,460.01 is: 102,686.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,511.60 : 149,646.09 = 74,460.01 : x
  2. Step 2: Convert to fraction form
    108,511.60/149,646.09 = 74,460.01/x
  3. Step 3: Cross multiply
    108,511.60x = 149,646.09 × 74,460.01
  4. Step 4: Simplify right side
    108,511.60x = 11,142,649,357.86
  5. Step 5: Solve for x
    x = 11,142,649,357.86/108,511.60
  6. Step 6: Final answer
    x = 102,686.25

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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.