Home / 112,135.91-154,746.33-61,148.48

Finding the Fourth Proportional to 112,135.91, 154,746.33 and 61,148.48

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Solution

The fourth proportional to 112,135.91, 154,746.33 and 61,148.48 is: 84,384.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,135.91 : 154,746.33 = 61,148.48 : x
  2. Step 2: Convert to fraction form
    112,135.91/154,746.33 = 61,148.48/x
  3. Step 3: Cross multiply
    112,135.91x = 154,746.33 × 61,148.48
  4. Step 4: Simplify right side
    112,135.91x = 9,462,502,865.08
  5. Step 5: Solve for x
    x = 9,462,502,865.08/112,135.91
  6. Step 6: Final answer
    x = 84,384.23

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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.