Home / 105,442.92-145,514.88-60,127.74

Finding the Fourth Proportional to 105,442.92, 145,514.88 and 60,127.74

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Solution

The fourth proportional to 105,442.92, 145,514.88 and 60,127.74 is: 82,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,442.92 : 145,514.88 = 60,127.74 : x
  2. Step 2: Convert to fraction form
    105,442.92/145,514.88 = 60,127.74/x
  3. Step 3: Cross multiply
    105,442.92x = 145,514.88 × 60,127.74
  4. Step 4: Simplify right side
    105,442.92x = 8,749,480,870.77
  5. Step 5: Solve for x
    x = 8,749,480,870.77/105,442.92
  6. Step 6: Final answer
    x = 82,978.36

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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.