Home / 180,904.16-249,659.75-100,335.08

Finding the Fourth Proportional to 180,904.16, 249,659.75 and 100,335.08

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Solution

The fourth proportional to 180,904.16, 249,659.75 and 100,335.08 is: 138,469.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,904.16 : 249,659.75 = 100,335.08 : x
  2. Step 2: Convert to fraction form
    180,904.16/249,659.75 = 100,335.08/x
  3. Step 3: Cross multiply
    180,904.16x = 249,659.75 × 100,335.08
  4. Step 4: Simplify right side
    180,904.16x = 25,049,630,989.03
  5. Step 5: Solve for x
    x = 25,049,630,989.03/180,904.16
  6. Step 6: Final answer
    x = 138,469.07

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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.