Home / 180,964.28-249,731.34-100,393.40

Finding the Fourth Proportional to 180,964.28, 249,731.34 and 100,393.40

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Solution

The fourth proportional to 180,964.28, 249,731.34 and 100,393.40 is: 138,543.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,964.28 : 249,731.34 = 100,393.40 : x
  2. Step 2: Convert to fraction form
    180,964.28/249,731.34 = 100,393.40/x
  3. Step 3: Cross multiply
    180,964.28x = 249,731.34 × 100,393.40
  4. Step 4: Simplify right side
    180,964.28x = 25,071,378,309.16
  5. Step 5: Solve for x
    x = 25,071,378,309.16/180,964.28
  6. Step 6: Final answer
    x = 138,543.24

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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.