Home / 180,964.55-249,731.37-100,392.07

Finding the Fourth Proportional to 180,964.55, 249,731.37 and 100,392.07

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Solution

The fourth proportional to 180,964.55, 249,731.37 and 100,392.07 is: 138,541.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,964.55 : 249,731.37 = 100,392.07 : x
  2. Step 2: Convert to fraction form
    180,964.55/249,731.37 = 100,392.07/x
  3. Step 3: Cross multiply
    180,964.55x = 249,731.37 × 100,392.07
  4. Step 4: Simplify right side
    180,964.55x = 25,071,049,178.24
  5. Step 5: Solve for x
    x = 25,071,049,178.24/180,964.55
  6. Step 6: Final answer
    x = 138,541.22

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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.