Home / 173,041.28-259,358.40-78,160.71

Finding the Fourth Proportional to 173,041.28, 259,358.40 and 78,160.71

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Solution

The fourth proportional to 173,041.28, 259,358.40 and 78,160.71 is: 117,149.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,041.28 : 259,358.40 = 78,160.71 : x
  2. Step 2: Convert to fraction form
    173,041.28/259,358.40 = 78,160.71/x
  3. Step 3: Cross multiply
    173,041.28x = 259,358.40 × 78,160.71
  4. Step 4: Simplify right side
    173,041.28x = 20,271,636,688.46
  5. Step 5: Solve for x
    x = 20,271,636,688.46/173,041.28
  6. Step 6: Final answer
    x = 117,149.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.