Home / 169,985.40-254,459.70-99,655.80

Finding the Fourth Proportional to 169,985.40, 254,459.70 and 99,655.80

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Solution

The fourth proportional to 169,985.40, 254,459.70 and 99,655.80 is: 149,179.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,985.40 : 254,459.70 = 99,655.80 : x
  2. Step 2: Convert to fraction form
    169,985.40/254,459.70 = 99,655.80/x
  3. Step 3: Cross multiply
    169,985.40x = 254,459.70 × 99,655.80
  4. Step 4: Simplify right side
    169,985.40x = 25,358,384,971.26
  5. Step 5: Solve for x
    x = 25,358,384,971.26/169,985.40
  6. Step 6: Final answer
    x = 149,179.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.