Home / 112,347.60-155,040.18-61,359.51

Finding the Fourth Proportional to 112,347.60, 155,040.18 and 61,359.51

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Solution

The fourth proportional to 112,347.60, 155,040.18 and 61,359.51 is: 84,676.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,347.60 : 155,040.18 = 61,359.51 : x
  2. Step 2: Convert to fraction form
    112,347.60/155,040.18 = 61,359.51/x
  3. Step 3: Cross multiply
    112,347.60x = 155,040.18 × 61,359.51
  4. Step 4: Simplify right side
    112,347.60x = 9,513,189,475.11
  5. Step 5: Solve for x
    x = 9,513,189,475.11/112,347.60
  6. Step 6: Final answer
    x = 84,676.39

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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.