Home / 111,922.13-154,583.75-74,130.77

Finding the Fourth Proportional to 111,922.13, 154,583.75 and 74,130.77

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Solution

The fourth proportional to 111,922.13, 154,583.75 and 74,130.77 is: 102,387.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,922.13 : 154,583.75 = 74,130.77 : x
  2. Step 2: Convert to fraction form
    111,922.13/154,583.75 = 74,130.77/x
  3. Step 3: Cross multiply
    111,922.13x = 154,583.75 × 74,130.77
  4. Step 4: Simplify right side
    111,922.13x = 11,459,411,829.40
  5. Step 5: Solve for x
    x = 11,459,411,829.40/111,922.13
  6. Step 6: Final answer
    x = 102,387.37

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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.