Home / 112,799.79-155,655.47-61,804.42

Finding the Fourth Proportional to 112,799.79, 155,655.47 and 61,804.42

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Solution

The fourth proportional to 112,799.79, 155,655.47 and 61,804.42 is: 85,285.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,799.79 : 155,655.47 = 61,804.42 : x
  2. Step 2: Convert to fraction form
    112,799.79/155,655.47 = 61,804.42/x
  3. Step 3: Cross multiply
    112,799.79x = 155,655.47 × 61,804.42
  4. Step 4: Simplify right side
    112,799.79x = 9,620,195,808.55
  5. Step 5: Solve for x
    x = 9,620,195,808.55/112,799.79
  6. Step 6: Final answer
    x = 85,285.58

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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.