Home / 121,938.98-182,966.80-43,090.34

Finding the Fourth Proportional to 121,938.98, 182,966.80 and 43,090.34

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Solution

The fourth proportional to 121,938.98, 182,966.80 and 43,090.34 is: 64,656.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,938.98 : 182,966.80 = 43,090.34 : x
  2. Step 2: Convert to fraction form
    121,938.98/182,966.80 = 43,090.34/x
  3. Step 3: Cross multiply
    121,938.98x = 182,966.80 × 43,090.34
  4. Step 4: Simplify right side
    121,938.98x = 7,884,101,620.71
  5. Step 5: Solve for x
    x = 7,884,101,620.71/121,938.98
  6. Step 6: Final answer
    x = 64,656.12

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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.