Home / 112,287.87-154,950.67-61,290.47

Finding the Fourth Proportional to 112,287.87, 154,950.67 and 61,290.47

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Solution

The fourth proportional to 112,287.87, 154,950.67 and 61,290.47 is: 84,577.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,287.87 : 154,950.67 = 61,290.47 : x
  2. Step 2: Convert to fraction form
    112,287.87/154,950.67 = 61,290.47/x
  3. Step 3: Cross multiply
    112,287.87x = 154,950.67 × 61,290.47
  4. Step 4: Simplify right side
    112,287.87x = 9,496,999,855.10
  5. Step 5: Solve for x
    x = 9,496,999,855.10/112,287.87
  6. Step 6: Final answer
    x = 84,577.26

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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.