Home / 114,871.05-172,189.02-39,929.70

Finding the Fourth Proportional to 114,871.05, 172,189.02 and 39,929.70

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Solution

The fourth proportional to 114,871.05, 172,189.02 and 39,929.70 is: 59,853.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,871.05 : 172,189.02 = 39,929.70 : x
  2. Step 2: Convert to fraction form
    114,871.05/172,189.02 = 39,929.70/x
  3. Step 3: Cross multiply
    114,871.05x = 172,189.02 × 39,929.70
  4. Step 4: Simplify right side
    114,871.05x = 6,875,455,911.89
  5. Step 5: Solve for x
    x = 6,875,455,911.89/114,871.05
  6. Step 6: Final answer
    x = 59,853.69

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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.