Home / 102,690.24-153,944.40-40,346.40

Finding the Fourth Proportional to 102,690.24, 153,944.40 and 40,346.40

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Solution

The fourth proportional to 102,690.24, 153,944.40 and 40,346.40 is: 60,483.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,690.24 : 153,944.40 = 40,346.40 : x
  2. Step 2: Convert to fraction form
    102,690.24/153,944.40 = 40,346.40/x
  3. Step 3: Cross multiply
    102,690.24x = 153,944.40 × 40,346.40
  4. Step 4: Simplify right side
    102,690.24x = 6,211,102,340.16
  5. Step 5: Solve for x
    x = 6,211,102,340.16/102,690.24
  6. Step 6: Final answer
    x = 60,483.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.