Home / 108,245.03-149,281.08-90,155.81

Finding the Fourth Proportional to 108,245.03, 149,281.08 and 90,155.81

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Solution

The fourth proportional to 108,245.03, 149,281.08 and 90,155.81 is: 124,334.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,245.03 : 149,281.08 = 90,155.81 : x
  2. Step 2: Convert to fraction form
    108,245.03/149,281.08 = 90,155.81/x
  3. Step 3: Cross multiply
    108,245.03x = 149,281.08 × 90,155.81
  4. Step 4: Simplify right side
    108,245.03x = 13,458,556,685.07
  5. Step 5: Solve for x
    x = 13,458,556,685.07/108,245.03
  6. Step 6: Final answer
    x = 124,334.18

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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.