Home / 115,341.54-159,172.47-64,353.84

Finding the Fourth Proportional to 115,341.54, 159,172.47 and 64,353.84

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Solution

The fourth proportional to 115,341.54, 159,172.47 and 64,353.84 is: 88,808.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,341.54 : 159,172.47 = 64,353.84 : x
  2. Step 2: Convert to fraction form
    115,341.54/159,172.47 = 64,353.84/x
  3. Step 3: Cross multiply
    115,341.54x = 159,172.47 × 64,353.84
  4. Step 4: Simplify right side
    115,341.54x = 10,243,359,666.78
  5. Step 5: Solve for x
    x = 10,243,359,666.78/115,341.54
  6. Step 6: Final answer
    x = 88,808.94

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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.