Home / 104,931.30-157,416.15-42,608.10

Finding the Fourth Proportional to 104,931.30, 157,416.15 and 42,608.10

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Solution

The fourth proportional to 104,931.30, 157,416.15 and 42,608.10 is: 63,919.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,931.30 : 157,416.15 = 42,608.10 : x
  2. Step 2: Convert to fraction form
    104,931.30/157,416.15 = 42,608.10/x
  3. Step 3: Cross multiply
    104,931.30x = 157,416.15 × 42,608.10
  4. Step 4: Simplify right side
    104,931.30x = 6,707,203,060.82
  5. Step 5: Solve for x
    x = 6,707,203,060.82/104,931.30
  6. Step 6: Final answer
    x = 63,919.95

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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.