Home / 127,317.08-175,631.68-86,483.30

Finding the Fourth Proportional to 127,317.08, 175,631.68 and 86,483.30

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Solution

The fourth proportional to 127,317.08, 175,631.68 and 86,483.30 is: 119,302.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,317.08 : 175,631.68 = 86,483.30 : x
  2. Step 2: Convert to fraction form
    127,317.08/175,631.68 = 86,483.30/x
  3. Step 3: Cross multiply
    127,317.08x = 175,631.68 × 86,483.30
  4. Step 4: Simplify right side
    127,317.08x = 15,189,207,493.81
  5. Step 5: Solve for x
    x = 15,189,207,493.81/127,317.08
  6. Step 6: Final answer
    x = 119,302.20

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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.