Home / 121,001.19-166,985.69-66,555.66

Finding the Fourth Proportional to 121,001.19, 166,985.69 and 66,555.66

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Solution

The fourth proportional to 121,001.19, 166,985.69 and 66,555.66 is: 91,849.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,001.19 : 166,985.69 = 66,555.66 : x
  2. Step 2: Convert to fraction form
    121,001.19/166,985.69 = 66,555.66/x
  3. Step 3: Cross multiply
    121,001.19x = 166,985.69 × 66,555.66
  4. Step 4: Simplify right side
    121,001.19x = 11,113,842,162.63
  5. Step 5: Solve for x
    x = 11,113,842,162.63/121,001.19
  6. Step 6: Final answer
    x = 91,849.03

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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.