Home / 121,966.77-168,293.93-71,675.49

Finding the Fourth Proportional to 121,966.77, 168,293.93 and 71,675.49

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Solution

The fourth proportional to 121,966.77, 168,293.93 and 71,675.49 is: 98,900.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,966.77 : 168,293.93 = 71,675.49 : x
  2. Step 2: Convert to fraction form
    121,966.77/168,293.93 = 71,675.49/x
  3. Step 3: Cross multiply
    121,966.77x = 168,293.93 × 71,675.49
  4. Step 4: Simplify right side
    121,966.77x = 12,062,549,538.40
  5. Step 5: Solve for x
    x = 12,062,549,538.40/121,966.77
  6. Step 6: Final answer
    x = 98,900.30

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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.