Home / 127,864.91-191,790.45-39,118.41

Finding the Fourth Proportional to 127,864.91, 191,790.45 and 39,118.41

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Solution

The fourth proportional to 127,864.91, 191,790.45 and 39,118.41 is: 58,675.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,864.91 : 191,790.45 = 39,118.41 : x
  2. Step 2: Convert to fraction form
    127,864.91/191,790.45 = 39,118.41/x
  3. Step 3: Cross multiply
    127,864.91x = 191,790.45 × 39,118.41
  4. Step 4: Simplify right side
    127,864.91x = 7,502,537,457.18
  5. Step 5: Solve for x
    x = 7,502,537,457.18/127,864.91
  6. Step 6: Final answer
    x = 58,675.50

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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.