Home / 112,147.18-154,762.67-61,159.79

Finding the Fourth Proportional to 112,147.18, 154,762.67 and 61,159.79

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Solution

The fourth proportional to 112,147.18, 154,762.67 and 61,159.79 is: 84,400.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,147.18 : 154,762.67 = 61,159.79 : x
  2. Step 2: Convert to fraction form
    112,147.18/154,762.67 = 61,159.79/x
  3. Step 3: Cross multiply
    112,147.18x = 154,762.67 × 61,159.79
  4. Step 4: Simplify right side
    112,147.18x = 9,465,252,091.24
  5. Step 5: Solve for x
    x = 9,465,252,091.24/112,147.18
  6. Step 6: Final answer
    x = 84,400.27

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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.