Home / 212,774.03-319,233.95-72,631.07

Finding the Fourth Proportional to 212,774.03, 319,233.95 and 72,631.07

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Solution

The fourth proportional to 212,774.03, 319,233.95 and 72,631.07 is: 108,971.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,774.03 : 319,233.95 = 72,631.07 : x
  2. Step 2: Convert to fraction form
    212,774.03/319,233.95 = 72,631.07/x
  3. Step 3: Cross multiply
    212,774.03x = 319,233.95 × 72,631.07
  4. Step 4: Simplify right side
    212,774.03x = 23,186,301,409.50
  5. Step 5: Solve for x
    x = 23,186,301,409.50/212,774.03
  6. Step 6: Final answer
    x = 108,971.48

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1.5x scale

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.