Home / 134,178.18-185,183.40-86,570.02

Finding the Fourth Proportional to 134,178.18, 185,183.40 and 86,570.02

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Solution

The fourth proportional to 134,178.18, 185,183.40 and 86,570.02 is: 119,477.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,178.18 : 185,183.40 = 86,570.02 : x
  2. Step 2: Convert to fraction form
    134,178.18/185,183.40 = 86,570.02/x
  3. Step 3: Cross multiply
    134,178.18x = 185,183.40 × 86,570.02
  4. Step 4: Simplify right side
    134,178.18x = 16,031,330,641.67
  5. Step 5: Solve for x
    x = 16,031,330,641.67/134,178.18
  6. Step 6: Final answer
    x = 119,477.93

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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.