Home / 126,885.16-190,349.70-42,653.56

Finding the Fourth Proportional to 126,885.16, 190,349.70 and 42,653.56

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Solution

The fourth proportional to 126,885.16, 190,349.70 and 42,653.56 is: 63,987.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,885.16 : 190,349.70 = 42,653.56 : x
  2. Step 2: Convert to fraction form
    126,885.16/190,349.70 = 42,653.56/x
  3. Step 3: Cross multiply
    126,885.16x = 190,349.70 × 42,653.56
  4. Step 4: Simplify right side
    126,885.16x = 8,119,092,349.93
  5. Step 5: Solve for x
    x = 8,119,092,349.93/126,885.16
  6. Step 6: Final answer
    x = 63,987.72

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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.