Home / 134,330.34-185,500.35-86,665.62

Finding the Fourth Proportional to 134,330.34, 185,500.35 and 86,665.62

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Solution

The fourth proportional to 134,330.34, 185,500.35 and 86,665.62 is: 119,678.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,330.34 : 185,500.35 = 86,665.62 : x
  2. Step 2: Convert to fraction form
    134,330.34/185,500.35 = 86,665.62/x
  3. Step 3: Cross multiply
    134,330.34x = 185,500.35 × 86,665.62
  4. Step 4: Simplify right side
    134,330.34x = 16,076,502,842.97
  5. Step 5: Solve for x
    x = 16,076,502,842.97/134,330.34
  6. Step 6: Final answer
    x = 119,678.87

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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.