Home / 112,436.07-155,157.21-61,450.50

Finding the Fourth Proportional to 112,436.07, 155,157.21 and 61,450.50

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Solution

The fourth proportional to 112,436.07, 155,157.21 and 61,450.50 is: 84,799.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,436.07 : 155,157.21 = 61,450.50 : x
  2. Step 2: Convert to fraction form
    112,436.07/155,157.21 = 61,450.50/x
  3. Step 3: Cross multiply
    112,436.07x = 155,157.21 × 61,450.50
  4. Step 4: Simplify right side
    112,436.07x = 9,534,487,755.77
  5. Step 5: Solve for x
    x = 9,534,487,755.77/112,436.07
  6. Step 6: Final answer
    x = 84,799.19

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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.