Home / 102,497.08-141,445.74-57,784.76

Finding the Fourth Proportional to 102,497.08, 141,445.74 and 57,784.76

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Solution

The fourth proportional to 102,497.08, 141,445.74 and 57,784.76 is: 79,742.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,497.08 : 141,445.74 = 57,784.76 : x
  2. Step 2: Convert to fraction form
    102,497.08/141,445.74 = 57,784.76/x
  3. Step 3: Cross multiply
    102,497.08x = 141,445.74 × 57,784.76
  4. Step 4: Simplify right side
    102,497.08x = 8,173,408,138.92
  5. Step 5: Solve for x
    x = 8,173,408,138.92/102,497.08
  6. Step 6: Final answer
    x = 79,742.84

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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.