Home / 121,261.08-167,332.86-67,543.32

Finding the Fourth Proportional to 121,261.08, 167,332.86 and 67,543.32

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Solution

The fourth proportional to 121,261.08, 167,332.86 and 67,543.32 is: 93,205.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,261.08 : 167,332.86 = 67,543.32 : x
  2. Step 2: Convert to fraction form
    121,261.08/167,332.86 = 67,543.32/x
  3. Step 3: Cross multiply
    121,261.08x = 167,332.86 × 67,543.32
  4. Step 4: Simplify right side
    121,261.08x = 11,302,216,909.50
  5. Step 5: Solve for x
    x = 11,302,216,909.50/121,261.08
  6. Step 6: Final answer
    x = 93,205.64

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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.