Home / 102,442.10-141,317.40-68,439.72

Finding the Fourth Proportional to 102,442.10, 141,317.40 and 68,439.72

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Solution

The fourth proportional to 102,442.10, 141,317.40 and 68,439.72 is: 94,411.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,442.10 : 141,317.40 = 68,439.72 : x
  2. Step 2: Convert to fraction form
    102,442.10/141,317.40 = 68,439.72/x
  3. Step 3: Cross multiply
    102,442.10x = 141,317.40 × 68,439.72
  4. Step 4: Simplify right side
    102,442.10x = 9,671,723,287.13
  5. Step 5: Solve for x
    x = 9,671,723,287.13/102,442.10
  6. Step 6: Final answer
    x = 94,411.61

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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.