Home / 112,341.03-154,959.43-85,424.52

Finding the Fourth Proportional to 112,341.03, 154,959.43 and 85,424.52

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Solution

The fourth proportional to 112,341.03, 154,959.43 and 85,424.52 is: 117,831.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,341.03 : 154,959.43 = 85,424.52 : x
  2. Step 2: Convert to fraction form
    112,341.03/154,959.43 = 85,424.52/x
  3. Step 3: Cross multiply
    112,341.03x = 154,959.43 × 85,424.52
  4. Step 4: Simplify right side
    112,341.03x = 13,237,335,454.93
  5. Step 5: Solve for x
    x = 13,237,335,454.93/112,341.03
  6. Step 6: Final answer
    x = 117,831.71

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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.