Home / 212,734.08-319,130.40-94,402.80

Finding the Fourth Proportional to 212,734.08, 319,130.40 and 94,402.80

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Solution

The fourth proportional to 212,734.08, 319,130.40 and 94,402.80 is: 141,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,734.08 : 319,130.40 = 94,402.80 : x
  2. Step 2: Convert to fraction form
    212,734.08/319,130.40 = 94,402.80/x
  3. Step 3: Cross multiply
    212,734.08x = 319,130.40 × 94,402.80
  4. Step 4: Simplify right side
    212,734.08x = 30,126,803,325.12
  5. Step 5: Solve for x
    x = 30,126,803,325.12/212,734.08
  6. Step 6: Final answer
    x = 141,617.19

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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.