Home / 134,178.68-185,184.09-86,570.52

Finding the Fourth Proportional to 134,178.68, 185,184.09 and 86,570.52

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Solution

The fourth proportional to 134,178.68, 185,184.09 and 86,570.52 is: 119,478.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,178.68 : 185,184.09 = 86,570.52 : x
  2. Step 2: Convert to fraction form
    134,178.68/185,184.09 = 86,570.52/x
  3. Step 3: Cross multiply
    134,178.68x = 185,184.09 × 86,570.52
  4. Step 4: Simplify right side
    134,178.68x = 16,031,482,967.03
  5. Step 5: Solve for x
    x = 16,031,482,967.03/134,178.68
  6. Step 6: Final answer
    x = 119,478.62

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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.