Home / 161,012.30-222,156.95-89,374.41

Finding the Fourth Proportional to 161,012.30, 222,156.95 and 89,374.41

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Solution

The fourth proportional to 161,012.30, 222,156.95 and 89,374.41 is: 123,314.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,012.30 : 222,156.95 = 89,374.41 : x
  2. Step 2: Convert to fraction form
    161,012.30/222,156.95 = 89,374.41/x
  3. Step 3: Cross multiply
    161,012.30x = 222,156.95 × 89,374.41
  4. Step 4: Simplify right side
    161,012.30x = 19,855,145,886.78
  5. Step 5: Solve for x
    x = 19,855,145,886.78/161,012.30
  6. Step 6: Final answer
    x = 123,314.47

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1.5x scale

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.