Home / 127,148.79-190,590.24-42,879.84

Finding the Fourth Proportional to 127,148.79, 190,590.24 and 42,879.84

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Solution

The fourth proportional to 127,148.79, 190,590.24 and 42,879.84 is: 64,274.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,148.79 : 190,590.24 = 42,879.84 : x
  2. Step 2: Convert to fraction form
    127,148.79/190,590.24 = 42,879.84/x
  3. Step 3: Cross multiply
    127,148.79x = 190,590.24 × 42,879.84
  4. Step 4: Simplify right side
    127,148.79x = 8,172,478,996.76
  5. Step 5: Solve for x
    x = 8,172,478,996.76/127,148.79
  6. Step 6: Final answer
    x = 64,274.93

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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.