Home / 104,931.80-157,416.90-42,608.60

Finding the Fourth Proportional to 104,931.80, 157,416.90 and 42,608.60

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Solution

The fourth proportional to 104,931.80, 157,416.90 and 42,608.60 is: 63,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,931.80 : 157,416.90 = 42,608.60 : x
  2. Step 2: Convert to fraction form
    104,931.80/157,416.90 = 42,608.60/x
  3. Step 3: Cross multiply
    104,931.80x = 157,416.90 × 42,608.60
  4. Step 4: Simplify right side
    104,931.80x = 6,707,313,725.34
  5. Step 5: Solve for x
    x = 6,707,313,725.34/104,931.80
  6. Step 6: Final answer
    x = 63,920.70

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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.