Home / 121,947.52-168,267.36-71,656.24

Finding the Fourth Proportional to 121,947.52, 168,267.36 and 71,656.24

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Solution

The fourth proportional to 121,947.52, 168,267.36 and 71,656.24 is: 98,873.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,947.52 : 168,267.36 = 71,656.24 : x
  2. Step 2: Convert to fraction form
    121,947.52/168,267.36 = 71,656.24/x
  3. Step 3: Cross multiply
    121,947.52x = 168,267.36 × 71,656.24
  4. Step 4: Simplify right side
    121,947.52x = 12,057,406,332.33
  5. Step 5: Solve for x
    x = 12,057,406,332.33/121,947.52
  6. Step 6: Final answer
    x = 98,873.73

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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.