Home / 102,360.33-141,258.21-56,421.66

Finding the Fourth Proportional to 102,360.33, 141,258.21 and 56,421.66

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Solution

The fourth proportional to 102,360.33, 141,258.21 and 56,421.66 is: 77,862.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,360.33 : 141,258.21 = 56,421.66 : x
  2. Step 2: Convert to fraction form
    102,360.33/141,258.21 = 56,421.66/x
  3. Step 3: Cross multiply
    102,360.33x = 141,258.21 × 56,421.66
  4. Step 4: Simplify right side
    102,360.33x = 7,970,022,696.83
  5. Step 5: Solve for x
    x = 7,970,022,696.83/102,360.33
  6. Step 6: Final answer
    x = 77,862.42

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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.