Home / 108,244.03-149,279.70-90,154.81

Finding the Fourth Proportional to 108,244.03, 149,279.70 and 90,154.81

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Solution

The fourth proportional to 108,244.03, 149,279.70 and 90,154.81 is: 124,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,244.03 : 149,279.70 = 90,154.81 : x
  2. Step 2: Convert to fraction form
    108,244.03/149,279.70 = 90,154.81/x
  3. Step 3: Cross multiply
    108,244.03x = 149,279.70 × 90,154.81
  4. Step 4: Simplify right side
    108,244.03x = 13,458,282,990.36
  5. Step 5: Solve for x
    x = 13,458,282,990.36/108,244.03
  6. Step 6: Final answer
    x = 124,332.80

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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.