Home / 105,392.64-145,445.88-60,077.76

Finding the Fourth Proportional to 105,392.64, 145,445.88 and 60,077.76

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Solution

The fourth proportional to 105,392.64, 145,445.88 and 60,077.76 is: 82,909.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,392.64 : 145,445.88 = 60,077.76 : x
  2. Step 2: Convert to fraction form
    105,392.64/145,445.88 = 60,077.76/x
  3. Step 3: Cross multiply
    105,392.64x = 145,445.88 × 60,077.76
  4. Step 4: Simplify right side
    105,392.64x = 8,738,062,671.63
  5. Step 5: Solve for x
    x = 8,738,062,671.63/105,392.64
  6. Step 6: Final answer
    x = 82,909.61

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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.