Home / 180,917.79-249,503.13-112,941.05

Finding the Fourth Proportional to 180,917.79, 249,503.13 and 112,941.05

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Solution

The fourth proportional to 180,917.79, 249,503.13 and 112,941.05 is: 155,756.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,917.79 : 249,503.13 = 112,941.05 : x
  2. Step 2: Convert to fraction form
    180,917.79/249,503.13 = 112,941.05/x
  3. Step 3: Cross multiply
    180,917.79x = 249,503.13 × 112,941.05
  4. Step 4: Simplify right side
    180,917.79x = 28,179,144,232.97
  5. Step 5: Solve for x
    x = 28,179,144,232.97/180,917.79
  6. Step 6: Final answer
    x = 155,756.62

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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.