Home / 180,621.42-249,378.10-112,665.66

Finding the Fourth Proportional to 180,621.42, 249,378.10 and 112,665.66

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Solution

The fourth proportional to 180,621.42, 249,378.10 and 112,665.66 is: 155,553.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,621.42 : 249,378.10 = 112,665.66 : x
  2. Step 2: Convert to fraction form
    180,621.42/249,378.10 = 112,665.66/x
  3. Step 3: Cross multiply
    180,621.42x = 249,378.10 × 112,665.66
  4. Step 4: Simplify right side
    180,621.42x = 28,096,348,226.05
  5. Step 5: Solve for x
    x = 28,096,348,226.05/180,621.42
  6. Step 6: Final answer
    x = 155,553.80

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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.