Home / 105,434.06-145,502.60-60,118.74

Finding the Fourth Proportional to 105,434.06, 145,502.60 and 60,118.74

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Solution

The fourth proportional to 105,434.06, 145,502.60 and 60,118.74 is: 82,965.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,434.06 : 145,502.60 = 60,118.74 : x
  2. Step 2: Convert to fraction form
    105,434.06/145,502.60 = 60,118.74/x
  3. Step 3: Cross multiply
    105,434.06x = 145,502.60 × 60,118.74
  4. Step 4: Simplify right side
    105,434.06x = 8,747,432,678.13
  5. Step 5: Solve for x
    x = 8,747,432,678.13/105,434.06
  6. Step 6: Final answer
    x = 82,965.91

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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.