Home / 152,798.13-210,861.36-89,123.63

Finding the Fourth Proportional to 152,798.13, 210,861.36 and 89,123.63

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Solution

The fourth proportional to 152,798.13, 210,861.36 and 89,123.63 is: 122,990.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,798.13 : 210,861.36 = 89,123.63 : x
  2. Step 2: Convert to fraction form
    152,798.13/210,861.36 = 89,123.63/x
  3. Step 3: Cross multiply
    152,798.13x = 210,861.36 × 89,123.63
  4. Step 4: Simplify right side
    152,798.13x = 18,792,728,775.63
  5. Step 5: Solve for x
    x = 18,792,728,775.63/152,798.13
  6. Step 6: Final answer
    x = 122,990.57

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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.