Home / 121,743.96-168,001.80-70,754.28

Finding the Fourth Proportional to 121,743.96, 168,001.80 and 70,754.28

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Solution

The fourth proportional to 121,743.96, 168,001.80 and 70,754.28 is: 97,638.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,743.96 : 168,001.80 = 70,754.28 : x
  2. Step 2: Convert to fraction form
    121,743.96/168,001.80 = 70,754.28/x
  3. Step 3: Cross multiply
    121,743.96x = 168,001.80 × 70,754.28
  4. Step 4: Simplify right side
    121,743.96x = 11,886,846,397.70
  5. Step 5: Solve for x
    x = 11,886,846,397.70/121,743.96
  6. Step 6: Final answer
    x = 97,638.08

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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.